Home / 747,680,910.30-1,121,521,365.45-360,260,421.30

Finding the Fourth Proportional to 747,680,910.30, 1,121,521,365.45 and 360,260,421.30

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Solution

The fourth proportional to 747,680,910.30, 1,121,521,365.45 and 360,260,421.30 is: 540,390,631.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,680,910.30 : 1,121,521,365.45 = 360,260,421.30 : x
  2. Step 2: Convert to fraction form
    747,680,910.30/1,121,521,365.45 = 360,260,421.30/x
  3. Step 3: Cross multiply
    747,680,910.30x = 1,121,521,365.45 × 360,260,421.30
  4. Step 4: Simplify right side
    747,680,910.30x = 404,039,759,613,968,320
  5. Step 5: Solve for x
    x = 404,039,759,613,968,320/747,680,910.30
  6. Step 6: Final answer
    x = 540,390,631.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.