Home / 1,277,202,542.50-1,762,541,899.77-690,491,678.50

Finding the Fourth Proportional to 1,277,202,542.50, 1,762,541,899.77 and 690,491,678.50

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Solution

The fourth proportional to 1,277,202,542.50, 1,762,541,899.77 and 690,491,678.50 is: 952,879,809.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,202,542.50 : 1,762,541,899.77 = 690,491,678.50 : x
  2. Step 2: Convert to fraction form
    1,277,202,542.50/1,762,541,899.77 = 690,491,678.50/x
  3. Step 3: Cross multiply
    1,277,202,542.50x = 1,762,541,899.77 × 690,491,678.50
  4. Step 4: Simplify right side
    1,277,202,542.50x = 1,217,020,514,798,766,080
  5. Step 5: Solve for x
    x = 1,217,020,514,798,766,080/1,277,202,542.50
  6. Step 6: Final answer
    x = 952,879,809.04

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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.