Home / 20,162,510.90-30,243,766.35-18,083,986.10

Finding the Fourth Proportional to 20,162,510.90, 30,243,766.35 and 18,083,986.10

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Solution

The fourth proportional to 20,162,510.90, 30,243,766.35 and 18,083,986.10 is: 27,125,979.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162,510.90 : 30,243,766.35 = 18,083,986.10 : x
  2. Step 2: Convert to fraction form
    20,162,510.90/30,243,766.35 = 18,083,986.10/x
  3. Step 3: Cross multiply
    20,162,510.90x = 30,243,766.35 × 18,083,986.10
  4. Step 4: Simplify right side
    20,162,510.90x = 546,927,850,285,047.81
  5. Step 5: Solve for x
    x = 546,927,850,285,047.81/20,162,510.90
  6. Step 6: Final answer
    x = 27,125,979.15

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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.