Home / 128,857,439.04-177,823,294.96-70,910,687.04

Finding the Fourth Proportional to 128,857,439.04, 177,823,294.96 and 70,910,687.04

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Solution

The fourth proportional to 128,857,439.04, 177,823,294.96 and 70,910,687.04 is: 97,856,764.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,857,439.04 : 177,823,294.96 = 70,910,687.04 : x
  2. Step 2: Convert to fraction form
    128,857,439.04/177,823,294.96 = 70,910,687.04/x
  3. Step 3: Cross multiply
    128,857,439.04x = 177,823,294.96 × 70,910,687.04
  4. Step 4: Simplify right side
    128,857,439.04x = 12,609,572,017,330,172
  5. Step 5: Solve for x
    x = 12,609,572,017,330,172/128,857,439.04
  6. Step 6: Final answer
    x = 97,856,764.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.