Home / 130,707,028.60-180,378,934.03-71,171,588.53

Finding the Fourth Proportional to 130,707,028.60, 180,378,934.03 and 71,171,588.53

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Solution

The fourth proportional to 130,707,028.60, 180,378,934.03 and 71,171,588.53 is: 98,218,553.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,707,028.60 : 180,378,934.03 = 71,171,588.53 : x
  2. Step 2: Convert to fraction form
    130,707,028.60/180,378,934.03 = 71,171,588.53/x
  3. Step 3: Cross multiply
    130,707,028.60x = 180,378,934.03 × 71,171,588.53
  4. Step 4: Simplify right side
    130,707,028.60x = 12,837,855,272,263,174
  5. Step 5: Solve for x
    x = 12,837,855,272,263,174/130,707,028.60
  6. Step 6: Final answer
    x = 98,218,553.43

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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.