Home / 1,290,077,805.17-1,780,458,512.99-733,244,554.19

Finding the Fourth Proportional to 1,290,077,805.17, 1,780,458,512.99 and 733,244,554.19

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Solution

The fourth proportional to 1,290,077,805.17, 1,780,458,512.99 and 733,244,554.19 is: 1,011,963,389.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,077,805.17 : 1,780,458,512.99 = 733,244,554.19 : x
  2. Step 2: Convert to fraction form
    1,290,077,805.17/1,780,458,512.99 = 733,244,554.19/x
  3. Step 3: Cross multiply
    1,290,077,805.17x = 1,780,458,512.99 × 733,244,554.19
  4. Step 4: Simplify right side
    1,290,077,805.17x = 1,305,511,508,611,142,912
  5. Step 5: Solve for x
    x = 1,305,511,508,611,142,912/1,290,077,805.17
  6. Step 6: Final answer
    x = 1,011,963,389.63

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Half scale
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Double scale
Find fourth proportional to 1,290,077,806.17, 1,780,458,514.37 and 733,244,555.19
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.