Home / 31,348,916.15-43,267,868.85-18,118,655.06

Finding the Fourth Proportional to 31,348,916.15, 43,267,868.85 and 18,118,655.06

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Solution

The fourth proportional to 31,348,916.15, 43,267,868.85 and 18,118,655.06 is: 25,007,422.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,348,916.15 : 43,267,868.85 = 18,118,655.06 : x
  2. Step 2: Convert to fraction form
    31,348,916.15/43,267,868.85 = 18,118,655.06/x
  3. Step 3: Cross multiply
    31,348,916.15x = 43,267,868.85 × 18,118,655.06
  4. Step 4: Simplify right side
    31,348,916.15x = 783,955,590,874,468.88
  5. Step 5: Solve for x
    x = 783,955,590,874,468.88/31,348,916.15
  6. Step 6: Final answer
    x = 25,007,422.49

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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.