Home / 80,923,430.40-121,385,145.60-29,798,806.20

Finding the Fourth Proportional to 80,923,430.40, 121,385,145.60 and 29,798,806.20

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Solution

The fourth proportional to 80,923,430.40, 121,385,145.60 and 29,798,806.20 is: 44,698,209.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,923,430.40 : 121,385,145.60 = 29,798,806.20 : x
  2. Step 2: Convert to fraction form
    80,923,430.40/121,385,145.60 = 29,798,806.20/x
  3. Step 3: Cross multiply
    80,923,430.40x = 121,385,145.60 × 29,798,806.20
  4. Step 4: Simplify right side
    80,923,430.40x = 3,617,132,429,293,182.50
  5. Step 5: Solve for x
    x = 3,617,132,429,293,182.50/80,923,430.40
  6. Step 6: Final answer
    x = 44,698,209.30

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Double scale
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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.