Home / 1,290,077,804.17-1,780,458,511.61-733,244,553.19

Finding the Fourth Proportional to 1,290,077,804.17, 1,780,458,511.61 and 733,244,553.19

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Solution

The fourth proportional to 1,290,077,804.17, 1,780,458,511.61 and 733,244,553.19 is: 1,011,963,388.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,077,804.17 : 1,780,458,511.61 = 733,244,553.19 : x
  2. Step 2: Convert to fraction form
    1,290,077,804.17/1,780,458,511.61 = 733,244,553.19/x
  3. Step 3: Cross multiply
    1,290,077,804.17x = 1,780,458,511.61 × 733,244,553.19
  4. Step 4: Simplify right side
    1,290,077,804.17x = 1,305,511,505,818,806,784
  5. Step 5: Solve for x
    x = 1,305,511,505,818,806,784/1,290,077,804.17
  6. Step 6: Final answer
    x = 1,011,963,388.25

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Double scale
Find fourth proportional to 1,290,077,805.17, 1,780,458,512.99 and 733,244,554.19
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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.