Home / 253,551,789.50-380,382,222.56-78,671,319.75

Finding the Fourth Proportional to 253,551,789.50, 380,382,222.56 and 78,671,319.75

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Solution

The fourth proportional to 253,551,789.50, 380,382,222.56 and 78,671,319.75 is: 118,023,901.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,551,789.50 : 380,382,222.56 = 78,671,319.75 : x
  2. Step 2: Convert to fraction form
    253,551,789.50/380,382,222.56 = 78,671,319.75/x
  3. Step 3: Cross multiply
    253,551,789.50x = 380,382,222.56 × 78,671,319.75
  4. Step 4: Simplify right side
    253,551,789.50x = 29,925,171,457,840,068
  5. Step 5: Solve for x
    x = 29,925,171,457,840,068/253,551,789.50
  6. Step 6: Final answer
    x = 118,023,901.62

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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.