Home / 915,007,216.76-1,262,722,747.04-497,319,376.76

Finding the Fourth Proportional to 915,007,216.76, 1,262,722,747.04 and 497,319,376.76

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Solution

The fourth proportional to 915,007,216.76, 1,262,722,747.04 and 497,319,376.76 is: 686,307,690.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,007,216.76 : 1,262,722,747.04 = 497,319,376.76 : x
  2. Step 2: Convert to fraction form
    915,007,216.76/1,262,722,747.04 = 497,319,376.76/x
  3. Step 3: Cross multiply
    915,007,216.76x = 1,262,722,747.04 × 497,319,376.76
  4. Step 4: Simplify right side
    915,007,216.76x = 627,976,489,578,607,872
  5. Step 5: Solve for x
    x = 627,976,489,578,607,872/915,007,216.76
  6. Step 6: Final answer
    x = 686,307,690.34

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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.