Home / 20,808,009.60-31,210,459.20-8,674,339.20

Finding the Fourth Proportional to 20,808,009.60, 31,210,459.20 and 8,674,339.20

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Solution

The fourth proportional to 20,808,009.60, 31,210,459.20 and 8,674,339.20 is: 13,010,860.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,808,009.60 : 31,210,459.20 = 8,674,339.20 : x
  2. Step 2: Convert to fraction form
    20,808,009.60/31,210,459.20 = 8,674,339.20/x
  3. Step 3: Cross multiply
    20,808,009.60x = 31,210,459.20 × 8,674,339.20
  4. Step 4: Simplify right side
    20,808,009.60x = 270,730,109,688,560.62
  5. Step 5: Solve for x
    x = 270,730,109,688,560.62/20,808,009.60
  6. Step 6: Final answer
    x = 13,010,860.48

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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.