Home / 31,171,912.15-43,018,567.28-17,420,875.87

Finding the Fourth Proportional to 31,171,912.15, 43,018,567.28 and 17,420,875.87

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Solution

The fourth proportional to 31,171,912.15, 43,018,567.28 and 17,420,875.87 is: 24,041,551.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,171,912.15 : 43,018,567.28 = 17,420,875.87 : x
  2. Step 2: Convert to fraction form
    31,171,912.15/43,018,567.28 = 17,420,875.87/x
  3. Step 3: Cross multiply
    31,171,912.15x = 43,018,567.28 × 17,420,875.87
  4. Step 4: Simplify right side
    31,171,912.15x = 749,421,120,690,123.62
  5. Step 5: Solve for x
    x = 749,421,120,690,123.62/31,171,912.15
  6. Step 6: Final answer
    x = 24,041,551.16

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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.