Home / 154,864,864.20-232,299,759.52-86,214,015.66

Finding the Fourth Proportional to 154,864,864.20, 232,299,759.52 and 86,214,015.66

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Solution

The fourth proportional to 154,864,864.20, 232,299,759.52 and 86,214,015.66 is: 129,322,394.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,864,864.20 : 232,299,759.52 = 86,214,015.66 : x
  2. Step 2: Convert to fraction form
    154,864,864.20/232,299,759.52 = 86,214,015.66/x
  3. Step 3: Cross multiply
    154,864,864.20x = 232,299,759.52 × 86,214,015.66
  4. Step 4: Simplify right side
    154,864,864.20x = 20,027,495,105,565,020
  5. Step 5: Solve for x
    x = 20,027,495,105,565,020/154,864,864.20
  6. Step 6: Final answer
    x = 129,322,394.78

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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.