Home / 866,771,380.70-1,300,157,071.05-800,447,543.90

Finding the Fourth Proportional to 866,771,380.70, 1,300,157,071.05 and 800,447,543.90

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Solution

The fourth proportional to 866,771,380.70, 1,300,157,071.05 and 800,447,543.90 is: 1,200,671,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,771,380.70 : 1,300,157,071.05 = 800,447,543.90 : x
  2. Step 2: Convert to fraction form
    866,771,380.70/1,300,157,071.05 = 800,447,543.90/x
  3. Step 3: Cross multiply
    866,771,380.70x = 1,300,157,071.05 × 800,447,543.90
  4. Step 4: Simplify right side
    866,771,380.70x = 1,040,707,534,206,190,208
  5. Step 5: Solve for x
    x = 1,040,707,534,206,190,208/866,771,380.70
  6. Step 6: Final answer
    x = 1,200,671,315.85

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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.