Home / 650,617,023.60-976,681,362.60-392,124,121.20

Finding the Fourth Proportional to 650,617,023.60, 976,681,362.60 and 392,124,121.20

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Solution

The fourth proportional to 650,617,023.60, 976,681,362.60 and 392,124,121.20 is: 588,641,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,617,023.60 : 976,681,362.60 = 392,124,121.20 : x
  2. Step 2: Convert to fraction form
    650,617,023.60/976,681,362.60 = 392,124,121.20/x
  3. Step 3: Cross multiply
    650,617,023.60x = 976,681,362.60 × 392,124,121.20
  4. Step 4: Simplify right side
    650,617,023.60x = 382,980,321,001,943,552
  5. Step 5: Solve for x
    x = 382,980,321,001,943,552/650,617,023.60
  6. Step 6: Final answer
    x = 588,641,715.65

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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.