Home / 915,411,064.32-1,263,258,360.90-497,723,348.52

Finding the Fourth Proportional to 915,411,064.32, 1,263,258,360.90 and 497,723,348.52

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Solution

The fourth proportional to 915,411,064.32, 1,263,258,360.90 and 497,723,348.52 is: 686,853,377.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,411,064.32 : 1,263,258,360.90 = 497,723,348.52 : x
  2. Step 2: Convert to fraction form
    915,411,064.32/1,263,258,360.90 = 497,723,348.52/x
  3. Step 3: Cross multiply
    915,411,064.32x = 1,263,258,360.90 × 497,723,348.52
  4. Step 4: Simplify right side
    915,411,064.32x = 628,753,181,433,034,624
  5. Step 5: Solve for x
    x = 628,753,181,433,034,624/915,411,064.32
  6. Step 6: Final answer
    x = 686,853,377.61

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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.