Home / 159,768,761.20-239,653,141.80-90,894,007.60

Finding the Fourth Proportional to 159,768,761.20, 239,653,141.80 and 90,894,007.60

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Solution

The fourth proportional to 159,768,761.20, 239,653,141.80 and 90,894,007.60 is: 136,341,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,768,761.20 : 239,653,141.80 = 90,894,007.60 : x
  2. Step 2: Convert to fraction form
    159,768,761.20/239,653,141.80 = 90,894,007.60/x
  3. Step 3: Cross multiply
    159,768,761.20x = 239,653,141.80 × 90,894,007.60
  4. Step 4: Simplify right side
    159,768,761.20x = 21,783,034,492,133,076
  5. Step 5: Solve for x
    x = 21,783,034,492,133,076/159,768,761.20
  6. Step 6: Final answer
    x = 136,341,011.40

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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.