Home / 80,743,928.41-111,425,199.51-45,935,876.98

Finding the Fourth Proportional to 80,743,928.41, 111,425,199.51 and 45,935,876.98

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Solution

The fourth proportional to 80,743,928.41, 111,425,199.51 and 45,935,876.98 is: 63,390,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,743,928.41 : 111,425,199.51 = 45,935,876.98 : x
  2. Step 2: Convert to fraction form
    80,743,928.41/111,425,199.51 = 45,935,876.98/x
  3. Step 3: Cross multiply
    80,743,928.41x = 111,425,199.51 × 45,935,876.98
  4. Step 4: Simplify right side
    80,743,928.41x = 5,118,414,257,163,316
  5. Step 5: Solve for x
    x = 5,118,414,257,163,316/80,743,928.41
  6. Step 6: Final answer
    x = 63,390,701.42

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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.