Home / 12,953,902.70-19,430,854.05-3,977,288.30

Finding the Fourth Proportional to 12,953,902.70, 19,430,854.05 and 3,977,288.30

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Solution

The fourth proportional to 12,953,902.70, 19,430,854.05 and 3,977,288.30 is: 5,965,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,902.70 : 19,430,854.05 = 3,977,288.30 : x
  2. Step 2: Convert to fraction form
    12,953,902.70/19,430,854.05 = 3,977,288.30/x
  3. Step 3: Cross multiply
    12,953,902.70x = 19,430,854.05 × 3,977,288.30
  4. Step 4: Simplify right side
    12,953,902.70x = 77,282,108,472,072.61
  5. Step 5: Solve for x
    x = 77,282,108,472,072.61/12,953,902.70
  6. Step 6: Final answer
    x = 5,965,932.45

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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.