Home / 99,142,853.85-136,760,154.67-61,908,498.15

Finding the Fourth Proportional to 99,142,853.85, 136,760,154.67 and 61,908,498.15

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Solution

The fourth proportional to 99,142,853.85, 136,760,154.67 and 61,908,498.15 is: 85,398,144.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,142,853.85 : 136,760,154.67 = 61,908,498.15 : x
  2. Step 2: Convert to fraction form
    99,142,853.85/136,760,154.67 = 61,908,498.15/x
  3. Step 3: Cross multiply
    99,142,853.85x = 136,760,154.67 × 61,908,498.15
  4. Step 4: Simplify right side
    99,142,853.85x = 8,466,615,782,381,408
  5. Step 5: Solve for x
    x = 8,466,615,782,381,408/99,142,853.85
  6. Step 6: Final answer
    x = 85,398,144.73

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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.