Home / 3,131,134,832.64-4,320,968,834.88-1,721,462,776.32

Finding the Fourth Proportional to 3,131,134,832.64, 4,320,968,834.88 and 1,721,462,776.32

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Solution

The fourth proportional to 3,131,134,832.64, 4,320,968,834.88 and 1,721,462,776.32 is: 2,375,620,151.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,131,134,832.64 : 4,320,968,834.88 = 1,721,462,776.32 : x
  2. Step 2: Convert to fraction form
    3,131,134,832.64/4,320,968,834.88 = 1,721,462,776.32/x
  3. Step 3: Cross multiply
    3,131,134,832.64x = 4,320,968,834.88 × 1,721,462,776.32
  4. Step 4: Simplify right side
    3,131,134,832.64x = 7,438,387,006,884,720,640
  5. Step 5: Solve for x
    x = 7,438,387,006,884,720,640/3,131,134,832.64
  6. Step 6: Final answer
    x = 2,375,620,151.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.