Home / 274,141,242.28-378,311,387.10-156,665,225.08

Finding the Fourth Proportional to 274,141,242.28, 378,311,387.10 and 156,665,225.08

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Solution

The fourth proportional to 274,141,242.28, 378,311,387.10 and 156,665,225.08 is: 216,195,994.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,141,242.28 : 378,311,387.10 = 156,665,225.08 : x
  2. Step 2: Convert to fraction form
    274,141,242.28/378,311,387.10 = 156,665,225.08/x
  3. Step 3: Cross multiply
    274,141,242.28x = 378,311,387.10 × 156,665,225.08
  4. Step 4: Simplify right side
    274,141,242.28x = 59,268,238,610,348,520
  5. Step 5: Solve for x
    x = 59,268,238,610,348,520/274,141,242.28
  6. Step 6: Final answer
    x = 216,195,994.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.