Home / 21,489,909.60-32,234,864.40-12,880,565.40

Finding the Fourth Proportional to 21,489,909.60, 32,234,864.40 and 12,880,565.40

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Solution

The fourth proportional to 21,489,909.60, 32,234,864.40 and 12,880,565.40 is: 19,320,848.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,489,909.60 : 32,234,864.40 = 12,880,565.40 : x
  2. Step 2: Convert to fraction form
    21,489,909.60/32,234,864.40 = 12,880,565.40/x
  3. Step 3: Cross multiply
    21,489,909.60x = 32,234,864.40 × 12,880,565.40
  4. Step 4: Simplify right side
    21,489,909.60x = 415,203,279,064,331.75
  5. Step 5: Solve for x
    x = 415,203,279,064,331.75/21,489,909.60
  6. Step 6: Final answer
    x = 19,320,848.10

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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.