Home / 1,720,821,211.65-2,581,231,675.12-477,251,659.40

Finding the Fourth Proportional to 1,720,821,211.65, 2,581,231,675.12 and 477,251,659.40

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Solution

The fourth proportional to 1,720,821,211.65, 2,581,231,675.12 and 477,251,659.40 is: 715,877,449.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,720,821,211.65 : 2,581,231,675.12 = 477,251,659.40 : x
  2. Step 2: Convert to fraction form
    1,720,821,211.65/2,581,231,675.12 = 477,251,659.40/x
  3. Step 3: Cross multiply
    1,720,821,211.65x = 2,581,231,675.12 × 477,251,659.40
  4. Step 4: Simplify right side
    1,720,821,211.65x = 1,231,897,100,232,762,368
  5. Step 5: Solve for x
    x = 1,231,897,100,232,762,368/1,720,821,211.65
  6. Step 6: Final answer
    x = 715,877,449.61

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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.