Home / 358,138,723.20-537,208,084.80-329,921,174.40

Finding the Fourth Proportional to 358,138,723.20, 537,208,084.80 and 329,921,174.40

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Solution

The fourth proportional to 358,138,723.20, 537,208,084.80 and 329,921,174.40 is: 494,881,761.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,138,723.20 : 537,208,084.80 = 329,921,174.40 : x
  2. Step 2: Convert to fraction form
    358,138,723.20/537,208,084.80 = 329,921,174.40/x
  3. Step 3: Cross multiply
    358,138,723.20x = 537,208,084.80 × 329,921,174.40
  4. Step 4: Simplify right side
    358,138,723.20x = 177,236,322,234,390,752
  5. Step 5: Solve for x
    x = 177,236,322,234,390,752/358,138,723.20
  6. Step 6: Final answer
    x = 494,881,761.60

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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.