Home / 31,125,881.40-42,957,503.43-18,073,139.92

Finding the Fourth Proportional to 31,125,881.40, 42,957,503.43 and 18,073,139.92

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Solution

The fourth proportional to 31,125,881.40, 42,957,503.43 and 18,073,139.92 is: 24,943,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125,881.40 : 42,957,503.43 = 18,073,139.92 : x
  2. Step 2: Convert to fraction form
    31,125,881.40/42,957,503.43 = 18,073,139.92/x
  3. Step 3: Cross multiply
    31,125,881.40x = 42,957,503.43 × 18,073,139.92
  4. Step 4: Simplify right side
    31,125,881.40x = 776,376,970,104,270
  5. Step 5: Solve for x
    x = 776,376,970,104,270/31,125,881.40
  6. Step 6: Final answer
    x = 24,943,132.06

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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.