Home / 28,040,679.20-42,064,955.40-8,869,437.20

Finding the Fourth Proportional to 28,040,679.20, 42,064,955.40 and 8,869,437.20

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Solution

The fourth proportional to 28,040,679.20, 42,064,955.40 and 8,869,437.20 is: 13,305,400.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,679.20 : 42,064,955.40 = 8,869,437.20 : x
  2. Step 2: Convert to fraction form
    28,040,679.20/42,064,955.40 = 8,869,437.20/x
  3. Step 3: Cross multiply
    28,040,679.20x = 42,064,955.40 × 8,869,437.20
  4. Step 4: Simplify right side
    28,040,679.20x = 373,092,480,241,100.81
  5. Step 5: Solve for x
    x = 373,092,480,241,100.81/28,040,679.20
  6. Step 6: Final answer
    x = 13,305,400.97

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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.