Home / 28,040,672.20-42,064,944.90-8,869,430.20

Finding the Fourth Proportional to 28,040,672.20, 42,064,944.90 and 8,869,430.20

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Solution

The fourth proportional to 28,040,672.20, 42,064,944.90 and 8,869,430.20 is: 13,305,390.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,672.20 : 42,064,944.90 = 8,869,430.20 : x
  2. Step 2: Convert to fraction form
    28,040,672.20/42,064,944.90 = 8,869,430.20/x
  3. Step 3: Cross multiply
    28,040,672.20x = 42,064,944.90 × 8,869,430.20
  4. Step 4: Simplify right side
    28,040,672.20x = 373,092,092,657,395.94
  5. Step 5: Solve for x
    x = 373,092,092,657,395.94/28,040,672.20
  6. Step 6: Final answer
    x = 13,305,390.47

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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.