Home / 91,655,620.20-126,817,827.90-79,919,344.52

Finding the Fourth Proportional to 91,655,620.20, 126,817,827.90 and 79,919,344.52

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Solution

The fourth proportional to 91,655,620.20, 126,817,827.90 and 79,919,344.52 is: 110,579,118.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,655,620.20 : 126,817,827.90 = 79,919,344.52 : x
  2. Step 2: Convert to fraction form
    91,655,620.20/126,817,827.90 = 79,919,344.52/x
  3. Step 3: Cross multiply
    91,655,620.20x = 126,817,827.90 × 79,919,344.52
  4. Step 4: Simplify right side
    91,655,620.20x = 10,135,197,679,218,168
  5. Step 5: Solve for x
    x = 10,135,197,679,218,168/91,655,620.20
  6. Step 6: Final answer
    x = 110,579,118.41

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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.