Home / 3,120,095,738.40-4,680,143,607.60-1,281,168,160.80

Finding the Fourth Proportional to 3,120,095,738.40, 4,680,143,607.60 and 1,281,168,160.80

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Solution

The fourth proportional to 3,120,095,738.40, 4,680,143,607.60 and 1,281,168,160.80 is: 1,921,752,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,095,738.40 : 4,680,143,607.60 = 1,281,168,160.80 : x
  2. Step 2: Convert to fraction form
    3,120,095,738.40/4,680,143,607.60 = 1,281,168,160.80/x
  3. Step 3: Cross multiply
    3,120,095,738.40x = 4,680,143,607.60 × 1,281,168,160.80
  4. Step 4: Simplify right side
    3,120,095,738.40x = 5,996,050,978,028,769,280
  5. Step 5: Solve for x
    x = 5,996,050,978,028,769,280/3,120,095,738.40
  6. Step 6: Final answer
    x = 1,921,752,241.20

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Double scale
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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.