Home / 787,967,999.20-1,181,951,998.80-777,218,456.80

Finding the Fourth Proportional to 787,967,999.20, 1,181,951,998.80 and 777,218,456.80

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Solution

The fourth proportional to 787,967,999.20, 1,181,951,998.80 and 777,218,456.80 is: 1,165,827,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,967,999.20 : 1,181,951,998.80 = 777,218,456.80 : x
  2. Step 2: Convert to fraction form
    787,967,999.20/1,181,951,998.80 = 777,218,456.80/x
  3. Step 3: Cross multiply
    787,967,999.20x = 1,181,951,998.80 × 777,218,456.80
  4. Step 4: Simplify right side
    787,967,999.20x = 918,634,908,519,011,328
  5. Step 5: Solve for x
    x = 918,634,908,519,011,328/787,967,999.20
  6. Step 6: Final answer
    x = 1,165,827,685.20

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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.