Home / 1,521,003,651.30-2,278,545,153.75-1,121,434,421.04

Finding the Fourth Proportional to 1,521,003,651.30, 2,278,545,153.75 and 1,121,434,421.04

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Solution

The fourth proportional to 1,521,003,651.30, 2,278,545,153.75 and 1,121,434,421.04 is: 1,679,968,988.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,003,651.30 : 2,278,545,153.75 = 1,121,434,421.04 : x
  2. Step 2: Convert to fraction form
    1,521,003,651.30/2,278,545,153.75 = 1,121,434,421.04/x
  3. Step 3: Cross multiply
    1,521,003,651.30x = 2,278,545,153.75 × 1,121,434,421.04
  4. Step 4: Simplify right side
    1,521,003,651.30x = 2,555,238,965,309,128,704
  5. Step 5: Solve for x
    x = 2,555,238,965,309,128,704/1,521,003,651.30
  6. Step 6: Final answer
    x = 1,679,968,988.32

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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.