Home / 20,168,140.70-27,824,102.70-12,419,730.92

Finding the Fourth Proportional to 20,168,140.70, 27,824,102.70 and 12,419,730.92

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Solution

The fourth proportional to 20,168,140.70, 27,824,102.70 and 12,419,730.92 is: 17,134,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,168,140.70 : 27,824,102.70 = 12,419,730.92 : x
  2. Step 2: Convert to fraction form
    20,168,140.70/27,824,102.70 = 12,419,730.92/x
  3. Step 3: Cross multiply
    20,168,140.70x = 27,824,102.70 × 12,419,730.92
  4. Step 4: Simplify right side
    20,168,140.70x = 345,567,868,624,445.50
  5. Step 5: Solve for x
    x = 345,567,868,624,445.50/20,168,140.70
  6. Step 6: Final answer
    x = 17,134,344.40

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1.5x scale

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.