Home / 142,013,085.80-213,019,628.70-55,707,067.40

Finding the Fourth Proportional to 142,013,085.80, 213,019,628.70 and 55,707,067.40

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Solution

The fourth proportional to 142,013,085.80, 213,019,628.70 and 55,707,067.40 is: 83,560,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,013,085.80 : 213,019,628.70 = 55,707,067.40 : x
  2. Step 2: Convert to fraction form
    142,013,085.80/213,019,628.70 = 55,707,067.40/x
  3. Step 3: Cross multiply
    142,013,085.80x = 213,019,628.70 × 55,707,067.40
  4. Step 4: Simplify right side
    142,013,085.80x = 11,866,698,813,513,874
  5. Step 5: Solve for x
    x = 11,866,698,813,513,874/142,013,085.80
  6. Step 6: Final answer
    x = 83,560,601.10

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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.