Home / 1,370,248,343.16-1,890,944,787.42-743,716,997.88

Finding the Fourth Proportional to 1,370,248,343.16, 1,890,944,787.42 and 743,716,997.88

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Solution

The fourth proportional to 1,370,248,343.16, 1,890,944,787.42 and 743,716,997.88 is: 1,026,330,582.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,248,343.16 : 1,890,944,787.42 = 743,716,997.88 : x
  2. Step 2: Convert to fraction form
    1,370,248,343.16/1,890,944,787.42 = 743,716,997.88/x
  3. Step 3: Cross multiply
    1,370,248,343.16x = 1,890,944,787.42 × 743,716,997.88
  4. Step 4: Simplify right side
    1,370,248,343.16x = 1,406,327,780,456,837,120
  5. Step 5: Solve for x
    x = 1,406,327,780,456,837,120/1,370,248,343.16
  6. Step 6: Final answer
    x = 1,026,330,582.68

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Double scale
Find fourth proportional to 1,370,248,344.16, 1,890,944,788.80 and 743,716,998.88
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.