Home / 90,630,375.42-125,065,571.49-51,466,979.10

Finding the Fourth Proportional to 90,630,375.42, 125,065,571.49 and 51,466,979.10

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Solution

The fourth proportional to 90,630,375.42, 125,065,571.49 and 51,466,979.10 is: 71,021,962.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,630,375.42 : 125,065,571.49 = 51,466,979.10 : x
  2. Step 2: Convert to fraction form
    90,630,375.42/125,065,571.49 = 51,466,979.10/x
  3. Step 3: Cross multiply
    90,630,375.42x = 125,065,571.49 × 51,466,979.10
  4. Step 4: Simplify right side
    90,630,375.42x = 6,436,747,154,005,386
  5. Step 5: Solve for x
    x = 6,436,747,154,005,386/90,630,375.42
  6. Step 6: Final answer
    x = 71,021,962.83

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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.