Home / 884,480,778.70-1,321,540,001.86-853,548,586.90

Finding the Fourth Proportional to 884,480,778.70, 1,321,540,001.86 and 853,548,586.90

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Solution

The fourth proportional to 884,480,778.70, 1,321,540,001.86 and 853,548,586.90 is: 1,275,322,910.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,480,778.70 : 1,321,540,001.86 = 853,548,586.90 : x
  2. Step 2: Convert to fraction form
    884,480,778.70/1,321,540,001.86 = 853,548,586.90/x
  3. Step 3: Cross multiply
    884,480,778.70x = 1,321,540,001.86 × 853,548,586.90
  4. Step 4: Simplify right side
    884,480,778.70x = 1,127,998,601,119,426,304
  5. Step 5: Solve for x
    x = 1,127,998,601,119,426,304/884,480,778.70
  6. Step 6: Final answer
    x = 1,275,322,910.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.