Home / 72,681,577.29-109,009,421.29-28,958,671.43

Finding the Fourth Proportional to 72,681,577.29, 109,009,421.29 and 28,958,671.43

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Solution

The fourth proportional to 72,681,577.29, 109,009,421.29 and 28,958,671.43 is: 43,432,849.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,681,577.29 : 109,009,421.29 = 28,958,671.43 : x
  2. Step 2: Convert to fraction form
    72,681,577.29/109,009,421.29 = 28,958,671.43/x
  3. Step 3: Cross multiply
    72,681,577.29x = 109,009,421.29 × 28,958,671.43
  4. Step 4: Simplify right side
    72,681,577.29x = 3,156,768,013,811,493.50
  5. Step 5: Solve for x
    x = 3,156,768,013,811,493.50/72,681,577.29
  6. Step 6: Final answer
    x = 43,432,849.58

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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.