Home / 253,218,063.22-379,820,008.92-80,705,228.74

Finding the Fourth Proportional to 253,218,063.22, 379,820,008.92 and 80,705,228.74

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Solution

The fourth proportional to 253,218,063.22, 379,820,008.92 and 80,705,228.74 is: 121,055,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,063.22 : 379,820,008.92 = 80,705,228.74 : x
  2. Step 2: Convert to fraction form
    253,218,063.22/379,820,008.92 = 80,705,228.74/x
  3. Step 3: Cross multiply
    253,218,063.22x = 379,820,008.92 × 80,705,228.74
  4. Step 4: Simplify right side
    253,218,063.22x = 30,653,460,699,917,440
  5. Step 5: Solve for x
    x = 30,653,460,699,917,440/253,218,063.22
  6. Step 6: Final answer
    x = 121,055,584.70

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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.