Home / 20,219,241.60-30,328,862.40-12,566,491.20

Finding the Fourth Proportional to 20,219,241.60, 30,328,862.40 and 12,566,491.20

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Solution

The fourth proportional to 20,219,241.60, 30,328,862.40 and 12,566,491.20 is: 18,849,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,241.60 : 30,328,862.40 = 12,566,491.20 : x
  2. Step 2: Convert to fraction form
    20,219,241.60/30,328,862.40 = 12,566,491.20/x
  3. Step 3: Cross multiply
    20,219,241.60x = 30,328,862.40 × 12,566,491.20
  4. Step 4: Simplify right side
    20,219,241.60x = 381,127,382,455,610.81
  5. Step 5: Solve for x
    x = 381,127,382,455,610.81/20,219,241.60
  6. Step 6: Final answer
    x = 18,849,736.80

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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.