Home / 75,816,187.20-113,724,280.80-74,682,446.40

Finding the Fourth Proportional to 75,816,187.20, 113,724,280.80 and 74,682,446.40

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Solution

The fourth proportional to 75,816,187.20, 113,724,280.80 and 74,682,446.40 is: 112,023,669.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,816,187.20 : 113,724,280.80 = 74,682,446.40 : x
  2. Step 2: Convert to fraction form
    75,816,187.20/113,724,280.80 = 74,682,446.40/x
  3. Step 3: Cross multiply
    75,816,187.20x = 113,724,280.80 × 74,682,446.40
  4. Step 4: Simplify right side
    75,816,187.20x = 8,493,207,505,224,550
  5. Step 5: Solve for x
    x = 8,493,207,505,224,550/75,816,187.20
  6. Step 6: Final answer
    x = 112,023,669.60

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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.