Home / 117,424,327.20-176,136,490.80-76,609,658.40

Finding the Fourth Proportional to 117,424,327.20, 176,136,490.80 and 76,609,658.40

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Solution

The fourth proportional to 117,424,327.20, 176,136,490.80 and 76,609,658.40 is: 114,914,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,424,327.20 : 176,136,490.80 = 76,609,658.40 : x
  2. Step 2: Convert to fraction form
    117,424,327.20/176,136,490.80 = 76,609,658.40/x
  3. Step 3: Cross multiply
    117,424,327.20x = 176,136,490.80 × 76,609,658.40
  4. Step 4: Simplify right side
    117,424,327.20x = 13,493,756,391,962,744
  5. Step 5: Solve for x
    x = 13,493,756,391,962,744/117,424,327.20
  6. Step 6: Final answer
    x = 114,914,487.60

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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.