Home / 21,216,813,531.92-31,819,791,923.28-6,290,488,799.52

Finding the Fourth Proportional to 21,216,813,531.92, 31,819,791,923.28 and 6,290,488,799.52

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Solution

The fourth proportional to 21,216,813,531.92, 31,819,791,923.28 and 6,290,488,799.52 is: 9,434,123,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,216,813,531.92 : 31,819,791,923.28 = 6,290,488,799.52 : x
  2. Step 2: Convert to fraction form
    21,216,813,531.92/31,819,791,923.28 = 6,290,488,799.52/x
  3. Step 3: Cross multiply
    21,216,813,531.92x = 31,819,791,923.28 × 6,290,488,799.52
  4. Step 4: Simplify right side
    21,216,813,531.92x = 200,162,044,696,449,810,432
  5. Step 5: Solve for x
    x = 200,162,044,696,449,810,432/21,216,813,531.92
  6. Step 6: Final answer
    x = 9,434,123,762.05

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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.