Home / 866,771,380.20-1,300,157,070.30-800,447,543.40

Finding the Fourth Proportional to 866,771,380.20, 1,300,157,070.30 and 800,447,543.40

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Solution

The fourth proportional to 866,771,380.20, 1,300,157,070.30 and 800,447,543.40 is: 1,200,671,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,771,380.20 : 1,300,157,070.30 = 800,447,543.40 : x
  2. Step 2: Convert to fraction form
    866,771,380.20/1,300,157,070.30 = 800,447,543.40/x
  3. Step 3: Cross multiply
    866,771,380.20x = 1,300,157,070.30 × 800,447,543.40
  4. Step 4: Simplify right side
    866,771,380.20x = 1,040,707,532,955,776,000
  5. Step 5: Solve for x
    x = 1,040,707,532,955,776,000/866,771,380.20
  6. Step 6: Final answer
    x = 1,200,671,315.10

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1.5x scale

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.