Home / 800,814,646.20-1,201,221,969.30-628,821,967.80

Finding the Fourth Proportional to 800,814,646.20, 1,201,221,969.30 and 628,821,967.80

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Solution

The fourth proportional to 800,814,646.20, 1,201,221,969.30 and 628,821,967.80 is: 943,232,951.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,814,646.20 : 1,201,221,969.30 = 628,821,967.80 : x
  2. Step 2: Convert to fraction form
    800,814,646.20/1,201,221,969.30 = 628,821,967.80/x
  3. Step 3: Cross multiply
    800,814,646.20x = 1,201,221,969.30 × 628,821,967.80
  4. Step 4: Simplify right side
    800,814,646.20x = 755,354,762,499,817,088
  5. Step 5: Solve for x
    x = 755,354,762,499,817,088/800,814,646.20
  6. Step 6: Final answer
    x = 943,232,951.70

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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.