Home / 72,472,885.84-108,572,165.10-42,840,360.84

Finding the Fourth Proportional to 72,472,885.84, 108,572,165.10 and 42,840,360.84

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Solution

The fourth proportional to 72,472,885.84, 108,572,165.10 and 42,840,360.84 is: 64,179,460.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,472,885.84 : 108,572,165.10 = 42,840,360.84 : x
  2. Step 2: Convert to fraction form
    72,472,885.84/108,572,165.10 = 42,840,360.84/x
  3. Step 3: Cross multiply
    72,472,885.84x = 108,572,165.10 × 42,840,360.84
  4. Step 4: Simplify right side
    72,472,885.84x = 4,651,270,730,064,055
  5. Step 5: Solve for x
    x = 4,651,270,730,064,055/72,472,885.84
  6. Step 6: Final answer
    x = 64,179,460.72

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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.