Home / 650,931,965.60-976,397,948.40-392,439,063.20

Finding the Fourth Proportional to 650,931,965.60, 976,397,948.40 and 392,439,063.20

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Solution

The fourth proportional to 650,931,965.60, 976,397,948.40 and 392,439,063.20 is: 588,658,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,931,965.60 : 976,397,948.40 = 392,439,063.20 : x
  2. Step 2: Convert to fraction form
    650,931,965.60/976,397,948.40 = 392,439,063.20/x
  3. Step 3: Cross multiply
    650,931,965.60x = 976,397,948.40 × 392,439,063.20
  4. Step 4: Simplify right side
    650,931,965.60x = 383,176,696,180,497,920
  5. Step 5: Solve for x
    x = 383,176,696,180,497,920/650,931,965.60
  6. Step 6: Final answer
    x = 588,658,594.80

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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.