Home / 20,753,368.20-31,130,052.30-11,187,430.20

Finding the Fourth Proportional to 20,753,368.20, 31,130,052.30 and 11,187,430.20

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Solution

The fourth proportional to 20,753,368.20, 31,130,052.30 and 11,187,430.20 is: 16,781,145.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,753,368.20 : 31,130,052.30 = 11,187,430.20 : x
  2. Step 2: Convert to fraction form
    20,753,368.20/31,130,052.30 = 11,187,430.20/x
  3. Step 3: Cross multiply
    20,753,368.20x = 31,130,052.30 × 11,187,430.20
  4. Step 4: Simplify right side
    20,753,368.20x = 348,265,287,228,599.44
  5. Step 5: Solve for x
    x = 348,265,287,228,599.44/20,753,368.20
  6. Step 6: Final answer
    x = 16,781,145.30

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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.