Home / 2,680,458,701.60-4,020,688,052.40-1,991,711,165.60

Finding the Fourth Proportional to 2,680,458,701.60, 4,020,688,052.40 and 1,991,711,165.60

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Solution

The fourth proportional to 2,680,458,701.60, 4,020,688,052.40 and 1,991,711,165.60 is: 2,987,566,748.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,680,458,701.60 : 4,020,688,052.40 = 1,991,711,165.60 : x
  2. Step 2: Convert to fraction form
    2,680,458,701.60/4,020,688,052.40 = 1,991,711,165.60/x
  3. Step 3: Cross multiply
    2,680,458,701.60x = 4,020,688,052.40 × 1,991,711,165.60
  4. Step 4: Simplify right side
    2,680,458,701.60x = 8,008,049,287,359,597,568
  5. Step 5: Solve for x
    x = 8,008,049,287,359,597,568/2,680,458,701.60
  6. Step 6: Final answer
    x = 2,987,566,748.40

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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.