Home / 12,248,663.30-18,372,994.95-5,428,503.80

Finding the Fourth Proportional to 12,248,663.30, 18,372,994.95 and 5,428,503.80

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Solution

The fourth proportional to 12,248,663.30, 18,372,994.95 and 5,428,503.80 is: 8,142,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248,663.30 : 18,372,994.95 = 5,428,503.80 : x
  2. Step 2: Convert to fraction form
    12,248,663.30/18,372,994.95 = 5,428,503.80/x
  3. Step 3: Cross multiply
    12,248,663.30x = 18,372,994.95 × 5,428,503.80
  4. Step 4: Simplify right side
    12,248,663.30x = 99,737,872,903,455.80
  5. Step 5: Solve for x
    x = 99,737,872,903,455.80/12,248,663.30
  6. Step 6: Final answer
    x = 8,142,755.70

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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.