Home / 890,393,141.70-1,335,589,712.55-747,541,800.90

Finding the Fourth Proportional to 890,393,141.70, 1,335,589,712.55 and 747,541,800.90

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Solution

The fourth proportional to 890,393,141.70, 1,335,589,712.55 and 747,541,800.90 is: 1,121,312,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,393,141.70 : 1,335,589,712.55 = 747,541,800.90 : x
  2. Step 2: Convert to fraction form
    890,393,141.70/1,335,589,712.55 = 747,541,800.90/x
  3. Step 3: Cross multiply
    890,393,141.70x = 1,335,589,712.55 × 747,541,800.90
  4. Step 4: Simplify right side
    890,393,141.70x = 998,409,138,983,140,224
  5. Step 5: Solve for x
    x = 998,409,138,983,140,224/890,393,141.70
  6. Step 6: Final answer
    x = 1,121,312,701.35

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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.