Home / 67,068,114.30-100,602,171.45-21,013,830.90

Finding the Fourth Proportional to 67,068,114.30, 100,602,171.45 and 21,013,830.90

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Solution

The fourth proportional to 67,068,114.30, 100,602,171.45 and 21,013,830.90 is: 31,520,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,068,114.30 : 100,602,171.45 = 21,013,830.90 : x
  2. Step 2: Convert to fraction form
    67,068,114.30/100,602,171.45 = 21,013,830.90/x
  3. Step 3: Cross multiply
    67,068,114.30x = 100,602,171.45 × 21,013,830.90
  4. Step 4: Simplify right side
    67,068,114.30x = 2,114,037,019,023,107.75
  5. Step 5: Solve for x
    x = 2,114,037,019,023,107.75/67,068,114.30
  6. Step 6: Final answer
    x = 31,520,746.35

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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.