Home / 1,978,886,191.17-2,730,852,380.82-1,074,634,221.69

Finding the Fourth Proportional to 1,978,886,191.17, 2,730,852,380.82 and 1,074,634,221.69

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Solution

The fourth proportional to 1,978,886,191.17, 2,730,852,380.82 and 1,074,634,221.69 is: 1,482,989,489.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,886,191.17 : 2,730,852,380.82 = 1,074,634,221.69 : x
  2. Step 2: Convert to fraction form
    1,978,886,191.17/2,730,852,380.82 = 1,074,634,221.69/x
  3. Step 3: Cross multiply
    1,978,886,191.17x = 2,730,852,380.82 × 1,074,634,221.69
  4. Step 4: Simplify right side
    1,978,886,191.17x = 2,934,667,422,812,784,640
  5. Step 5: Solve for x
    x = 2,934,667,422,812,784,640/1,978,886,191.17
  6. Step 6: Final answer
    x = 1,482,989,489.70

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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.