Home / 20,235,443.75-27,934,031.85-12,903,132.59

Finding the Fourth Proportional to 20,235,443.75, 27,934,031.85 and 12,903,132.59

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Solution

The fourth proportional to 20,235,443.75, 27,934,031.85 and 12,903,132.59 is: 17,812,138.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,235,443.75 : 27,934,031.85 = 12,903,132.59 : x
  2. Step 2: Convert to fraction form
    20,235,443.75/27,934,031.85 = 12,903,132.59/x
  3. Step 3: Cross multiply
    20,235,443.75x = 27,934,031.85 × 12,903,132.59
  4. Step 4: Simplify right side
    20,235,443.75x = 360,436,516,803,668.06
  5. Step 5: Solve for x
    x = 360,436,516,803,668.06/20,235,443.75
  6. Step 6: Final answer
    x = 17,812,138.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.