Home / 99,257,531.40-148,886,297.10-71,835,175.80

Finding the Fourth Proportional to 99,257,531.40, 148,886,297.10 and 71,835,175.80

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Solution

The fourth proportional to 99,257,531.40, 148,886,297.10 and 71,835,175.80 is: 107,752,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,257,531.40 : 148,886,297.10 = 71,835,175.80 : x
  2. Step 2: Convert to fraction form
    99,257,531.40/148,886,297.10 = 71,835,175.80/x
  3. Step 3: Cross multiply
    99,257,531.40x = 148,886,297.10 × 71,835,175.80
  4. Step 4: Simplify right side
    99,257,531.40x = 10,695,273,326,389,530
  5. Step 5: Solve for x
    x = 10,695,273,326,389,530/99,257,531.40
  6. Step 6: Final answer
    x = 107,752,763.70

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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.