Home / 689,480,705.61-1,034,214,242.67-315,882,619.56

Finding the Fourth Proportional to 689,480,705.61, 1,034,214,242.67 and 315,882,619.56

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Solution

The fourth proportional to 689,480,705.61, 1,034,214,242.67 and 315,882,619.56 is: 473,820,806.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,480,705.61 : 1,034,214,242.67 = 315,882,619.56 : x
  2. Step 2: Convert to fraction form
    689,480,705.61/1,034,214,242.67 = 315,882,619.56/x
  3. Step 3: Cross multiply
    689,480,705.61x = 1,034,214,242.67 × 315,882,619.56
  4. Step 4: Simplify right side
    689,480,705.61x = 326,690,304,160,861,120
  5. Step 5: Solve for x
    x = 326,690,304,160,861,120/689,480,705.61
  6. Step 6: Final answer
    x = 473,820,806.74

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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.