Home / 129,312,040.80-193,996,054.80-38,444,815.20

Finding the Fourth Proportional to 129,312,040.80, 193,996,054.80 and 38,444,815.20

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Solution

The fourth proportional to 129,312,040.80, 193,996,054.80 and 38,444,815.20 is: 57,675,545.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,312,040.80 : 193,996,054.80 = 38,444,815.20 : x
  2. Step 2: Convert to fraction form
    129,312,040.80/193,996,054.80 = 38,444,815.20/x
  3. Step 3: Cross multiply
    129,312,040.80x = 193,996,054.80 × 38,444,815.20
  4. Step 4: Simplify right side
    129,312,040.80x = 7,458,142,476,315,074
  5. Step 5: Solve for x
    x = 7,458,142,476,315,074/129,312,040.80
  6. Step 6: Final answer
    x = 57,675,545.37

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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.