Home / 28,106,961,248.28-42,158,890,002.43-20,551,488,480.70

Finding the Fourth Proportional to 28,106,961,248.28, 42,158,890,002.43 and 20,551,488,480.70

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Solution

The fourth proportional to 28,106,961,248.28, 42,158,890,002.43 and 20,551,488,480.70 is: 30,826,098,011.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,106,961,248.28 : 42,158,890,002.43 = 20,551,488,480.70 : x
  2. Step 2: Convert to fraction form
    28,106,961,248.28/42,158,890,002.43 = 20,551,488,480.70/x
  3. Step 3: Cross multiply
    28,106,961,248.28x = 42,158,890,002.43 × 20,551,488,480.70
  4. Step 4: Simplify right side
    28,106,961,248.28x = 866,427,942,243,935,846,400
  5. Step 5: Solve for x
    x = 866,427,942,243,935,846,400/28,106,961,248.28
  6. Step 6: Final answer
    x = 30,826,098,011.47

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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.