Home / 72,690,052.20-109,094,564.70-72,123,181.80

Finding the Fourth Proportional to 72,690,052.20, 109,094,564.70 and 72,123,181.80

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Solution

The fourth proportional to 72,690,052.20, 109,094,564.70 and 72,123,181.80 is: 108,243,795.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,690,052.20 : 109,094,564.70 = 72,123,181.80 : x
  2. Step 2: Convert to fraction form
    72,690,052.20/109,094,564.70 = 72,123,181.80/x
  3. Step 3: Cross multiply
    72,690,052.20x = 109,094,564.70 × 72,123,181.80
  4. Step 4: Simplify right side
    72,690,052.20x = 7,868,247,123,249,962
  5. Step 5: Solve for x
    x = 7,868,247,123,249,962/72,690,052.20
  6. Step 6: Final answer
    x = 108,243,795.20

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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.