Home / 99,403,531.80-149,016,651.30-38,805,163.80

Finding the Fourth Proportional to 99,403,531.80, 149,016,651.30 and 38,805,163.80

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Solution

The fourth proportional to 99,403,531.80, 149,016,651.30 and 38,805,163.80 is: 58,173,139.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,403,531.80 : 149,016,651.30 = 38,805,163.80 : x
  2. Step 2: Convert to fraction form
    99,403,531.80/149,016,651.30 = 38,805,163.80/x
  3. Step 3: Cross multiply
    99,403,531.80x = 149,016,651.30 × 38,805,163.80
  4. Step 4: Simplify right side
    99,403,531.80x = 5,782,615,562,623,983
  5. Step 5: Solve for x
    x = 5,782,615,562,623,983/99,403,531.80
  6. Step 6: Final answer
    x = 58,173,139.91

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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.