Home / 2,988,142,749.70-4,482,214,124.55-917,861,190.10

Finding the Fourth Proportional to 2,988,142,749.70, 4,482,214,124.55 and 917,861,190.10

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Solution

The fourth proportional to 2,988,142,749.70, 4,482,214,124.55 and 917,861,190.10 is: 1,376,791,785.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,142,749.70 : 4,482,214,124.55 = 917,861,190.10 : x
  2. Step 2: Convert to fraction form
    2,988,142,749.70/4,482,214,124.55 = 917,861,190.10/x
  3. Step 3: Cross multiply
    2,988,142,749.70x = 4,482,214,124.55 × 917,861,190.10
  4. Step 4: Simplify right side
    2,988,142,749.70x = 4,114,050,390,642,492,928
  5. Step 5: Solve for x
    x = 4,114,050,390,642,492,928/2,988,142,749.70
  6. Step 6: Final answer
    x = 1,376,791,785.15

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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.