Home / 20,487,933.60-30,731,900.40-15,952,970.40

Finding the Fourth Proportional to 20,487,933.60, 30,731,900.40 and 15,952,970.40

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Solution

The fourth proportional to 20,487,933.60, 30,731,900.40 and 15,952,970.40 is: 23,929,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,487,933.60 : 30,731,900.40 = 15,952,970.40 : x
  2. Step 2: Convert to fraction form
    20,487,933.60/30,731,900.40 = 15,952,970.40/x
  3. Step 3: Cross multiply
    20,487,933.60x = 30,731,900.40 × 15,952,970.40
  4. Step 4: Simplify right side
    20,487,933.60x = 490,265,097,416,948.12
  5. Step 5: Solve for x
    x = 490,265,097,416,948.12/20,487,933.60
  6. Step 6: Final answer
    x = 23,929,455.60

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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.