Home / 225,142,639.96-310,700,016.22-129,720,411.62

Finding the Fourth Proportional to 225,142,639.96, 310,700,016.22 and 129,720,411.62

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Solution

The fourth proportional to 225,142,639.96, 310,700,016.22 and 129,720,411.62 is: 179,015,996.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,142,639.96 : 310,700,016.22 = 129,720,411.62 : x
  2. Step 2: Convert to fraction form
    225,142,639.96/310,700,016.22 = 129,720,411.62/x
  3. Step 3: Cross multiply
    225,142,639.96x = 310,700,016.22 × 129,720,411.62
  4. Step 4: Simplify right side
    225,142,639.96x = 40,304,133,994,399,080
  5. Step 5: Solve for x
    x = 40,304,133,994,399,080/225,142,639.96
  6. Step 6: Final answer
    x = 179,015,996.27

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1.5x scale

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.