Home / 129,277,247.40-193,915,871.10-80,809,828.20

Finding the Fourth Proportional to 129,277,247.40, 193,915,871.10 and 80,809,828.20

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Solution

The fourth proportional to 129,277,247.40, 193,915,871.10 and 80,809,828.20 is: 121,214,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,277,247.40 : 193,915,871.10 = 80,809,828.20 : x
  2. Step 2: Convert to fraction form
    129,277,247.40/193,915,871.10 = 80,809,828.20/x
  3. Step 3: Cross multiply
    129,277,247.40x = 193,915,871.10 × 80,809,828.20
  4. Step 4: Simplify right side
    129,277,247.40x = 15,670,308,228,844,346
  5. Step 5: Solve for x
    x = 15,670,308,228,844,346/129,277,247.40
  6. Step 6: Final answer
    x = 121,214,742.30

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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.