Home / 75,816,089.40-113,724,134.10-72,840,019.80

Finding the Fourth Proportional to 75,816,089.40, 113,724,134.10 and 72,840,019.80

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Solution

The fourth proportional to 75,816,089.40, 113,724,134.10 and 72,840,019.80 is: 109,260,029.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,816,089.40 : 113,724,134.10 = 72,840,019.80 : x
  2. Step 2: Convert to fraction form
    75,816,089.40/113,724,134.10 = 72,840,019.80/x
  3. Step 3: Cross multiply
    75,816,089.40x = 113,724,134.10 × 72,840,019.80
  4. Step 4: Simplify right side
    75,816,089.40x = 8,283,668,179,581,854
  5. Step 5: Solve for x
    x = 8,283,668,179,581,854/75,816,089.40
  6. Step 6: Final answer
    x = 109,260,029.70

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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.