Home / 72,481,347.12-108,721,990.44-26,426,665.20

Finding the Fourth Proportional to 72,481,347.12, 108,721,990.44 and 26,426,665.20

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Solution

The fourth proportional to 72,481,347.12, 108,721,990.44 and 26,426,665.20 is: 39,639,986.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,481,347.12 : 108,721,990.44 = 26,426,665.20 : x
  2. Step 2: Convert to fraction form
    72,481,347.12/108,721,990.44 = 26,426,665.20/x
  3. Step 3: Cross multiply
    72,481,347.12x = 108,721,990.44 × 26,426,665.20
  4. Step 4: Simplify right side
    72,481,347.12x = 2,873,159,641,235,480.50
  5. Step 5: Solve for x
    x = 2,873,159,641,235,480.50/72,481,347.12
  6. Step 6: Final answer
    x = 39,639,986.77

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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.