Home / 28,017,999.90-42,013,003.05-12,854,799.90

Finding the Fourth Proportional to 28,017,999.90, 42,013,003.05 and 12,854,799.90

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Solution

The fourth proportional to 28,017,999.90, 42,013,003.05 and 12,854,799.90 is: 19,275,778.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017,999.90 : 42,013,003.05 = 12,854,799.90 : x
  2. Step 2: Convert to fraction form
    28,017,999.90/42,013,003.05 = 12,854,799.90/x
  3. Step 3: Cross multiply
    28,017,999.90x = 42,013,003.05 × 12,854,799.90
  4. Step 4: Simplify right side
    28,017,999.90x = 540,068,747,405,839.69
  5. Step 5: Solve for x
    x = 540,068,747,405,839.69/28,017,999.90
  6. Step 6: Final answer
    x = 19,275,778.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.