Home / 31,054,133.50-42,854,874.15-18,009,126.78

Finding the Fourth Proportional to 31,054,133.50, 42,854,874.15 and 18,009,126.78

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Solution

The fourth proportional to 31,054,133.50, 42,854,874.15 and 18,009,126.78 is: 24,852,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,054,133.50 : 42,854,874.15 = 18,009,126.78 : x
  2. Step 2: Convert to fraction form
    31,054,133.50/42,854,874.15 = 18,009,126.78/x
  3. Step 3: Cross multiply
    31,054,133.50x = 42,854,874.15 × 18,009,126.78
  4. Step 4: Simplify right side
    31,054,133.50x = 771,778,861,708,294.75
  5. Step 5: Solve for x
    x = 771,778,861,708,294.75/31,054,133.50
  6. Step 6: Final answer
    x = 24,852,693.50

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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.