Home / 650,931,964.60-976,397,946.90-392,439,062.20

Finding the Fourth Proportional to 650,931,964.60, 976,397,946.90 and 392,439,062.20

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Solution

The fourth proportional to 650,931,964.60, 976,397,946.90 and 392,439,062.20 is: 588,658,593.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,931,964.60 : 976,397,946.90 = 392,439,062.20 : x
  2. Step 2: Convert to fraction form
    650,931,964.60/976,397,946.90 = 392,439,062.20/x
  3. Step 3: Cross multiply
    650,931,964.60x = 976,397,946.90 × 392,439,062.20
  4. Step 4: Simplify right side
    650,931,964.60x = 383,176,694,615,441,408
  5. Step 5: Solve for x
    x = 383,176,694,615,441,408/650,931,964.60
  6. Step 6: Final answer
    x = 588,658,593.30

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1.5x scale

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.