Home / 1,290,077,806.55-1,780,458,514.89-733,244,555.57

Finding the Fourth Proportional to 1,290,077,806.55, 1,780,458,514.89 and 733,244,555.57

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Solution

The fourth proportional to 1,290,077,806.55, 1,780,458,514.89 and 733,244,555.57 is: 1,011,963,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,077,806.55 : 1,780,458,514.89 = 733,244,555.57 : x
  2. Step 2: Convert to fraction form
    1,290,077,806.55/1,780,458,514.89 = 733,244,555.57/x
  3. Step 3: Cross multiply
    1,290,077,806.55x = 1,780,458,514.89 × 733,244,555.57
  4. Step 4: Simplify right side
    1,290,077,806.55x = 1,305,511,512,461,340,416
  5. Step 5: Solve for x
    x = 1,305,511,512,461,340,416/1,290,077,806.55
  6. Step 6: Final answer
    x = 1,011,963,391.54

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Double scale
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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.