Home / 2,659,392,000.80-3,989,088,001.20-1,278,495,706.40

Finding the Fourth Proportional to 2,659,392,000.80, 3,989,088,001.20 and 1,278,495,706.40

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Solution

The fourth proportional to 2,659,392,000.80, 3,989,088,001.20 and 1,278,495,706.40 is: 1,917,743,559.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,392,000.80 : 3,989,088,001.20 = 1,278,495,706.40 : x
  2. Step 2: Convert to fraction form
    2,659,392,000.80/3,989,088,001.20 = 1,278,495,706.40/x
  3. Step 3: Cross multiply
    2,659,392,000.80x = 3,989,088,001.20 × 1,278,495,706.40
  4. Step 4: Simplify right side
    2,659,392,000.80x = 5,100,031,881,985,957,888
  5. Step 5: Solve for x
    x = 5,100,031,881,985,957,888/2,659,392,000.80
  6. Step 6: Final answer
    x = 1,917,743,559.60

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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.