Home / 78,011,311.68-117,024,709.68-28,840,053.96

Finding the Fourth Proportional to 78,011,311.68, 117,024,709.68 and 28,840,053.96

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Solution

The fourth proportional to 78,011,311.68, 117,024,709.68 and 28,840,053.96 is: 43,262,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,011,311.68 : 117,024,709.68 = 28,840,053.96 : x
  2. Step 2: Convert to fraction form
    78,011,311.68/117,024,709.68 = 28,840,053.96/x
  3. Step 3: Cross multiply
    78,011,311.68x = 117,024,709.68 × 28,840,053.96
  4. Step 4: Simplify right side
    78,011,311.68x = 3,374,998,941,824,534.50
  5. Step 5: Solve for x
    x = 3,374,998,941,824,534.50/78,011,311.68
  6. Step 6: Final answer
    x = 43,262,943.14

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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.