Home / 161,986,138.20-242,989,981.68-56,928,775.12

Finding the Fourth Proportional to 161,986,138.20, 242,989,981.68 and 56,928,775.12

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Solution

The fourth proportional to 161,986,138.20, 242,989,981.68 and 56,928,775.12 is: 85,396,949.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,986,138.20 : 242,989,981.68 = 56,928,775.12 : x
  2. Step 2: Convert to fraction form
    161,986,138.20/242,989,981.68 = 56,928,775.12/x
  3. Step 3: Cross multiply
    161,986,138.20x = 242,989,981.68 × 56,928,775.12
  4. Step 4: Simplify right side
    161,986,138.20x = 13,833,122,023,473,640
  5. Step 5: Solve for x
    x = 13,833,122,023,473,640/161,986,138.20
  6. Step 6: Final answer
    x = 85,396,949.25

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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.