Home / 28,331,314.60-42,398,994.30-16,979,909.80

Finding the Fourth Proportional to 28,331,314.60, 42,398,994.30 and 16,979,909.80

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Solution

The fourth proportional to 28,331,314.60, 42,398,994.30 and 16,979,909.80 is: 25,411,143.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,331,314.60 : 42,398,994.30 = 16,979,909.80 : x
  2. Step 2: Convert to fraction form
    28,331,314.60/42,398,994.30 = 16,979,909.80/x
  3. Step 3: Cross multiply
    28,331,314.60x = 42,398,994.30 × 16,979,909.80
  4. Step 4: Simplify right side
    28,331,314.60x = 719,931,098,824,714.12
  5. Step 5: Solve for x
    x = 719,931,098,824,714.12/28,331,314.60
  6. Step 6: Final answer
    x = 25,411,143.43

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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.