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Finding the Fourth Proportional to 708,514,603.07, 977,944,648.22 and 411,252,612.65

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Solution

The fourth proportional to 708,514,603.07, 977,944,648.22 and 411,252,612.65 is: 567,641,499.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,514,603.07 : 977,944,648.22 = 411,252,612.65 : x
  2. Step 2: Convert to fraction form
    708,514,603.07/977,944,648.22 = 411,252,612.65/x
  3. Step 3: Cross multiply
    708,514,603.07x = 977,944,648.22 × 411,252,612.65
  4. Step 4: Simplify right side
    708,514,603.07x = 402,182,291,605,823,680
  5. Step 5: Solve for x
    x = 402,182,291,605,823,680/708,514,603.07
  6. Step 6: Final answer
    x = 567,641,499.37

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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.