Home / 253,218,068.24-379,820,016.42-80,705,233.76

Finding the Fourth Proportional to 253,218,068.24, 379,820,016.42 and 80,705,233.76

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Solution

The fourth proportional to 253,218,068.24, 379,820,016.42 and 80,705,233.76 is: 121,055,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,068.24 : 379,820,016.42 = 80,705,233.76 : x
  2. Step 2: Convert to fraction form
    253,218,068.24/379,820,016.42 = 80,705,233.76/x
  3. Step 3: Cross multiply
    253,218,068.24x = 379,820,016.42 × 80,705,233.76
  4. Step 4: Simplify right side
    253,218,068.24x = 30,653,463,211,903,140
  5. Step 5: Solve for x
    x = 30,653,463,211,903,140/253,218,068.24
  6. Step 6: Final answer
    x = 121,055,592.22

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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.