Home / 111,297,607.76-166,865,699.05-74,815,511.72

Finding the Fourth Proportional to 111,297,607.76, 166,865,699.05 and 74,815,511.72

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Solution

The fourth proportional to 111,297,607.76, 166,865,699.05 and 74,815,511.72 is: 112,169,011.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,297,607.76 : 166,865,699.05 = 74,815,511.72 : x
  2. Step 2: Convert to fraction form
    111,297,607.76/166,865,699.05 = 74,815,511.72/x
  3. Step 3: Cross multiply
    111,297,607.76x = 166,865,699.05 × 74,815,511.72
  4. Step 4: Simplify right side
    111,297,607.76x = 12,484,142,661,919,902
  5. Step 5: Solve for x
    x = 12,484,142,661,919,902/111,297,607.76
  6. Step 6: Final answer
    x = 112,169,011.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.