Home / 90,605,418.86-125,031,958.71-55,382,199.82

Finding the Fourth Proportional to 90,605,418.86, 125,031,958.71 and 55,382,199.82

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Solution

The fourth proportional to 90,605,418.86, 125,031,958.71 and 55,382,199.82 is: 76,425,284.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,605,418.86 : 125,031,958.71 = 55,382,199.82 : x
  2. Step 2: Convert to fraction form
    90,605,418.86/125,031,958.71 = 55,382,199.82/x
  3. Step 3: Cross multiply
    90,605,418.86x = 125,031,958.71 × 55,382,199.82
  4. Step 4: Simplify right side
    90,605,418.86x = 6,924,544,921,163,209
  5. Step 5: Solve for x
    x = 6,924,544,921,163,209/90,605,418.86
  6. Step 6: Final answer
    x = 76,425,284.58

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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.