Home / 90,841,461.62-125,344,680.92-51,142,818.92

Finding the Fourth Proportional to 90,841,461.62, 125,344,680.92 and 51,142,818.92

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Solution

The fourth proportional to 90,841,461.62, 125,344,680.92 and 51,142,818.92 is: 70,567,780.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,841,461.62 : 125,344,680.92 = 51,142,818.92 : x
  2. Step 2: Convert to fraction form
    90,841,461.62/125,344,680.92 = 51,142,818.92/x
  3. Step 3: Cross multiply
    90,841,461.62x = 125,344,680.92 × 51,142,818.92
  4. Step 4: Simplify right side
    90,841,461.62x = 6,410,480,319,099,147
  5. Step 5: Solve for x
    x = 6,410,480,319,099,147/90,841,461.62
  6. Step 6: Final answer
    x = 70,567,780.44

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1.5x scale

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.