Home / 142,482,418.72-196,626,115.92-77,292,322.72

Finding the Fourth Proportional to 142,482,418.72, 196,626,115.92 and 77,292,322.72

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Solution

The fourth proportional to 142,482,418.72, 196,626,115.92 and 77,292,322.72 is: 106,663,610.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,482,418.72 : 196,626,115.92 = 77,292,322.72 : x
  2. Step 2: Convert to fraction form
    142,482,418.72/196,626,115.92 = 77,292,322.72/x
  3. Step 3: Cross multiply
    142,482,418.72x = 196,626,115.92 × 77,292,322.72
  4. Step 4: Simplify right side
    142,482,418.72x = 15,197,689,206,868,768
  5. Step 5: Solve for x
    x = 15,197,689,206,868,768/142,482,418.72
  6. Step 6: Final answer
    x = 106,663,610.45

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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.