Home / 1,123,812,818.40-1,685,719,227.60-477,496,581.60

Finding the Fourth Proportional to 1,123,812,818.40, 1,685,719,227.60 and 477,496,581.60

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Solution

The fourth proportional to 1,123,812,818.40, 1,685,719,227.60 and 477,496,581.60 is: 716,244,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,812,818.40 : 1,685,719,227.60 = 477,496,581.60 : x
  2. Step 2: Convert to fraction form
    1,123,812,818.40/1,685,719,227.60 = 477,496,581.60/x
  3. Step 3: Cross multiply
    1,123,812,818.40x = 1,685,719,227.60 × 477,496,581.60
  4. Step 4: Simplify right side
    1,123,812,818.40x = 804,925,168,716,392,320
  5. Step 5: Solve for x
    x = 804,925,168,716,392,320/1,123,812,818.40
  6. Step 6: Final answer
    x = 716,244,872.40

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Half scale
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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.