Home / 1,225,861,556.40-1,838,792,334.60-815,587,354.80

Finding the Fourth Proportional to 1,225,861,556.40, 1,838,792,334.60 and 815,587,354.80

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Solution

The fourth proportional to 1,225,861,556.40, 1,838,792,334.60 and 815,587,354.80 is: 1,223,381,032.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,861,556.40 : 1,838,792,334.60 = 815,587,354.80 : x
  2. Step 2: Convert to fraction form
    1,225,861,556.40/1,838,792,334.60 = 815,587,354.80/x
  3. Step 3: Cross multiply
    1,225,861,556.40x = 1,838,792,334.60 × 815,587,354.80
  4. Step 4: Simplify right side
    1,225,861,556.40x = 1,499,695,776,202,930,432
  5. Step 5: Solve for x
    x = 1,499,695,776,202,930,432/1,225,861,556.40
  6. Step 6: Final answer
    x = 1,223,381,032.20

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Double scale
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Similar ratio
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1.5x scale

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.