Home / 18,898,376.40-28,347,564.60-15,119,240.40

Finding the Fourth Proportional to 18,898,376.40, 28,347,564.60 and 15,119,240.40

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Solution

The fourth proportional to 18,898,376.40, 28,347,564.60 and 15,119,240.40 is: 22,678,860.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898,376.40 : 28,347,564.60 = 15,119,240.40 : x
  2. Step 2: Convert to fraction form
    18,898,376.40/28,347,564.60 = 15,119,240.40/x
  3. Step 3: Cross multiply
    18,898,376.40x = 28,347,564.60 × 15,119,240.40
  4. Step 4: Simplify right side
    18,898,376.40x = 428,593,643,941,929.88
  5. Step 5: Solve for x
    x = 428,593,643,941,929.88/18,898,376.40
  6. Step 6: Final answer
    x = 22,678,860.60

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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.