Home / 402,951,990.60-604,278,686.70-130,331,651.40

Finding the Fourth Proportional to 402,951,990.60, 604,278,686.70 and 130,331,651.40

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Solution

The fourth proportional to 402,951,990.60, 604,278,686.70 and 130,331,651.40 is: 195,449,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,951,990.60 : 604,278,686.70 = 130,331,651.40 : x
  2. Step 2: Convert to fraction form
    402,951,990.60/604,278,686.70 = 130,331,651.40/x
  3. Step 3: Cross multiply
    402,951,990.60x = 604,278,686.70 × 130,331,651.40
  4. Step 4: Simplify right side
    402,951,990.60x = 78,756,639,143,434,224
  5. Step 5: Solve for x
    x = 78,756,639,143,434,224/402,951,990.60
  6. Step 6: Final answer
    x = 195,449,187.45

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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.