Home / 20,487,935.10-30,731,902.65-15,952,971.90

Finding the Fourth Proportional to 20,487,935.10, 30,731,902.65 and 15,952,971.90

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Solution

The fourth proportional to 20,487,935.10, 30,731,902.65 and 15,952,971.90 is: 23,929,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,935.10 : 30,731,902.65 = 15,952,971.90 : x
  2. Step 2: Convert to fraction form
    20,487,935.10/30,731,902.65 = 15,952,971.90/x
  3. Step 3: Cross multiply
    20,487,935.10x = 30,731,902.65 × 15,952,971.90
  4. Step 4: Simplify right side
    20,487,935.10x = 490,265,179,408,985.50
  5. Step 5: Solve for x
    x = 490,265,179,408,985.50/20,487,935.10
  6. Step 6: Final answer
    x = 23,929,457.85

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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.