Home / 145,161,011.80-217,741,517.70-54,265,792.60

Finding the Fourth Proportional to 145,161,011.80, 217,741,517.70 and 54,265,792.60

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Solution

The fourth proportional to 145,161,011.80, 217,741,517.70 and 54,265,792.60 is: 81,398,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,161,011.80 : 217,741,517.70 = 54,265,792.60 : x
  2. Step 2: Convert to fraction form
    145,161,011.80/217,741,517.70 = 54,265,792.60/x
  3. Step 3: Cross multiply
    145,161,011.80x = 217,741,517.70 × 54,265,792.60
  4. Step 4: Simplify right side
    145,161,011.80x = 11,815,916,039,917,428
  5. Step 5: Solve for x
    x = 11,815,916,039,917,428/145,161,011.80
  6. Step 6: Final answer
    x = 81,398,688.90

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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.