Home / 21,783,742.60-32,675,613.90-20,791,719.40

Finding the Fourth Proportional to 21,783,742.60, 32,675,613.90 and 20,791,719.40

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Solution

The fourth proportional to 21,783,742.60, 32,675,613.90 and 20,791,719.40 is: 31,187,579.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783,742.60 : 32,675,613.90 = 20,791,719.40 : x
  2. Step 2: Convert to fraction form
    21,783,742.60/32,675,613.90 = 20,791,719.40/x
  3. Step 3: Cross multiply
    21,783,742.60x = 32,675,613.90 × 20,791,719.40
  4. Step 4: Simplify right side
    21,783,742.60x = 679,382,195,431,539.62
  5. Step 5: Solve for x
    x = 679,382,195,431,539.62/21,783,742.60
  6. Step 6: Final answer
    x = 31,187,579.10

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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.