Home / 2,099,692,047.20-3,149,538,070.80-1,320,812,117.60

Finding the Fourth Proportional to 2,099,692,047.20, 3,149,538,070.80 and 1,320,812,117.60

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Solution

The fourth proportional to 2,099,692,047.20, 3,149,538,070.80 and 1,320,812,117.60 is: 1,981,218,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,692,047.20 : 3,149,538,070.80 = 1,320,812,117.60 : x
  2. Step 2: Convert to fraction form
    2,099,692,047.20/3,149,538,070.80 = 1,320,812,117.60/x
  3. Step 3: Cross multiply
    2,099,692,047.20x = 3,149,538,070.80 × 1,320,812,117.60
  4. Step 4: Simplify right side
    2,099,692,047.20x = 4,159,948,048,755,166,720
  5. Step 5: Solve for x
    x = 4,159,948,048,755,166,720/2,099,692,047.20
  6. Step 6: Final answer
    x = 1,981,218,176.40

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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.