Home / 45,219,842.90-67,830,174.39-12,871,732.71

Finding the Fourth Proportional to 45,219,842.90, 67,830,174.39 and 12,871,732.71

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Solution

The fourth proportional to 45,219,842.90, 67,830,174.39 and 12,871,732.71 is: 19,307,715.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,219,842.90 : 67,830,174.39 = 12,871,732.71 : x
  2. Step 2: Convert to fraction form
    45,219,842.90/67,830,174.39 = 12,871,732.71/x
  3. Step 3: Cross multiply
    45,219,842.90x = 67,830,174.39 × 12,871,732.71
  4. Step 4: Simplify right side
    45,219,842.90x = 873,091,874,420,767.38
  5. Step 5: Solve for x
    x = 873,091,874,420,767.38/45,219,842.90
  6. Step 6: Final answer
    x = 19,307,715.78

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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.