Home / 31,171,908.15-43,018,561.76-17,420,871.87

Finding the Fourth Proportional to 31,171,908.15, 43,018,561.76 and 17,420,871.87

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Solution

The fourth proportional to 31,171,908.15, 43,018,561.76 and 17,420,871.87 is: 24,041,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,171,908.15 : 43,018,561.76 = 17,420,871.87 : x
  2. Step 2: Convert to fraction form
    31,171,908.15/43,018,561.76 = 17,420,871.87/x
  3. Step 3: Cross multiply
    31,171,908.15x = 43,018,561.76 × 17,420,871.87
  4. Step 4: Simplify right side
    31,171,908.15x = 749,420,852,365,537.38
  5. Step 5: Solve for x
    x = 749,420,852,365,537.38/31,171,908.15
  6. Step 6: Final answer
    x = 24,041,545.64

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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.