Home / 20,769,430.60-31,154,145.90-18,377,946.10

Finding the Fourth Proportional to 20,769,430.60, 31,154,145.90 and 18,377,946.10

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Solution

The fourth proportional to 20,769,430.60, 31,154,145.90 and 18,377,946.10 is: 27,566,919.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,769,430.60 : 31,154,145.90 = 18,377,946.10 : x
  2. Step 2: Convert to fraction form
    20,769,430.60/31,154,145.90 = 18,377,946.10/x
  3. Step 3: Cross multiply
    20,769,430.60x = 31,154,145.90 × 18,377,946.10
  4. Step 4: Simplify right side
    20,769,430.60x = 572,549,214,141,736
  5. Step 5: Solve for x
    x = 572,549,214,141,736/20,769,430.60
  6. Step 6: Final answer
    x = 27,566,919.15

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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.