Home / 142,013,020.80-213,019,531.20-55,707,002.40

Finding the Fourth Proportional to 142,013,020.80, 213,019,531.20 and 55,707,002.40

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Solution

The fourth proportional to 142,013,020.80, 213,019,531.20 and 55,707,002.40 is: 83,560,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,013,020.80 : 213,019,531.20 = 55,707,002.40 : x
  2. Step 2: Convert to fraction form
    142,013,020.80/213,019,531.20 = 55,707,002.40/x
  3. Step 3: Cross multiply
    142,013,020.80x = 213,019,531.20 × 55,707,002.40
  4. Step 4: Simplify right side
    142,013,020.80x = 11,866,679,535,805,274
  5. Step 5: Solve for x
    x = 11,866,679,535,805,274/142,013,020.80
  6. Step 6: Final answer
    x = 83,560,503.60

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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.