Home / 87,642,909.08-120,909,196.44-52,815,808.88

Finding the Fourth Proportional to 87,642,909.08, 120,909,196.44 and 52,815,808.88

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Solution

The fourth proportional to 87,642,909.08, 120,909,196.44 and 52,815,808.88 is: 72,862,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,642,909.08 : 120,909,196.44 = 52,815,808.88 : x
  2. Step 2: Convert to fraction form
    87,642,909.08/120,909,196.44 = 52,815,808.88/x
  3. Step 3: Cross multiply
    87,642,909.08x = 120,909,196.44 × 52,815,808.88
  4. Step 4: Simplify right side
    87,642,909.08x = 6,385,917,011,009,417
  5. Step 5: Solve for x
    x = 6,385,917,011,009,417/87,642,909.08
  6. Step 6: Final answer
    x = 72,862,905.60

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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.