Home / 30,611,729.12-42,244,184.68-16,860,693.92

Finding the Fourth Proportional to 30,611,729.12, 42,244,184.68 and 16,860,693.92

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Solution

The fourth proportional to 30,611,729.12, 42,244,184.68 and 16,860,693.92 is: 23,267,756.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611,729.12 : 42,244,184.68 = 16,860,693.92 : x
  2. Step 2: Convert to fraction form
    30,611,729.12/42,244,184.68 = 16,860,693.92/x
  3. Step 3: Cross multiply
    30,611,729.12x = 42,244,184.68 × 16,860,693.92
  4. Step 4: Simplify right side
    30,611,729.12x = 712,266,267,536,060.50
  5. Step 5: Solve for x
    x = 712,266,267,536,060.50/30,611,729.12
  6. Step 6: Final answer
    x = 23,267,756.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.