Home / 7,160,280.74-9,881,186.82-3,897,118.86

Finding the Fourth Proportional to 7,160,280.74, 9,881,186.82 and 3,897,118.86

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Solution

The fourth proportional to 7,160,280.74, 9,881,186.82 and 3,897,118.86 is: 5,378,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160,280.74 : 9,881,186.82 = 3,897,118.86 : x
  2. Step 2: Convert to fraction form
    7,160,280.74/9,881,186.82 = 3,897,118.86/x
  3. Step 3: Cross multiply
    7,160,280.74x = 9,881,186.82 × 3,897,118.86
  4. Step 4: Simplify right side
    7,160,280.74x = 38,508,159,515,405.42
  5. Step 5: Solve for x
    x = 38,508,159,515,405.42/7,160,280.74
  6. Step 6: Final answer
    x = 5,378,023.70

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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.