Home / 852,768,103.20-1,279,152,154.80-839,163,213.60

Finding the Fourth Proportional to 852,768,103.20, 1,279,152,154.80 and 839,163,213.60

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Solution

The fourth proportional to 852,768,103.20, 1,279,152,154.80 and 839,163,213.60 is: 1,258,744,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,768,103.20 : 1,279,152,154.80 = 839,163,213.60 : x
  2. Step 2: Convert to fraction form
    852,768,103.20/1,279,152,154.80 = 839,163,213.60/x
  3. Step 3: Cross multiply
    852,768,103.20x = 1,279,152,154.80 × 839,163,213.60
  4. Step 4: Simplify right side
    852,768,103.20x = 1,073,417,432,905,332,608
  5. Step 5: Solve for x
    x = 1,073,417,432,905,332,608/852,768,103.20
  6. Step 6: Final answer
    x = 1,258,744,820.40

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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.