Home / 20,842,150.80-31,291,219.80-13,302,541.20

Finding the Fourth Proportional to 20,842,150.80, 31,291,219.80 and 13,302,541.20

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Solution

The fourth proportional to 20,842,150.80, 31,291,219.80 and 13,302,541.20 is: 19,971,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842,150.80 : 31,291,219.80 = 13,302,541.20 : x
  2. Step 2: Convert to fraction form
    20,842,150.80/31,291,219.80 = 13,302,541.20/x
  3. Step 3: Cross multiply
    20,842,150.80x = 31,291,219.80 × 13,302,541.20
  4. Step 4: Simplify right side
    20,842,150.80x = 416,252,740,587,755.75
  5. Step 5: Solve for x
    x = 416,252,740,587,755.75/20,842,150.80
  6. Step 6: Final answer
    x = 19,971,678.77

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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.