Home / 142,482,420.72-196,626,118.68-77,292,324.72

Finding the Fourth Proportional to 142,482,420.72, 196,626,118.68 and 77,292,324.72

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Solution

The fourth proportional to 142,482,420.72, 196,626,118.68 and 77,292,324.72 is: 106,663,613.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,482,420.72 : 196,626,118.68 = 77,292,324.72 : x
  2. Step 2: Convert to fraction form
    142,482,420.72/196,626,118.68 = 77,292,324.72/x
  3. Step 3: Cross multiply
    142,482,420.72x = 196,626,118.68 × 77,292,324.72
  4. Step 4: Simplify right side
    142,482,420.72x = 15,197,689,813,447,818
  5. Step 5: Solve for x
    x = 15,197,689,813,447,818/142,482,420.72
  6. Step 6: Final answer
    x = 106,663,613.21

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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.