Home / 28,459,012.60-39,273,428.82-15,406,261.96

Finding the Fourth Proportional to 28,459,012.60, 39,273,428.82 and 15,406,261.96

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Solution

The fourth proportional to 28,459,012.60, 39,273,428.82 and 15,406,261.96 is: 21,260,636.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459,012.60 : 39,273,428.82 = 15,406,261.96 : x
  2. Step 2: Convert to fraction form
    28,459,012.60/39,273,428.82 = 15,406,261.96/x
  3. Step 3: Cross multiply
    28,459,012.60x = 39,273,428.82 × 15,406,261.96
  4. Step 4: Simplify right side
    28,459,012.60x = 605,056,732,468,333.75
  5. Step 5: Solve for x
    x = 605,056,732,468,333.75/28,459,012.60
  6. Step 6: Final answer
    x = 21,260,636.87

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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.