Home / 28,892,391.30-39,870,637.02-15,839,204.04

Finding the Fourth Proportional to 28,892,391.30, 39,870,637.02 and 15,839,204.04

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Solution

The fourth proportional to 28,892,391.30, 39,870,637.02 and 15,839,204.04 is: 21,857,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892,391.30 : 39,870,637.02 = 15,839,204.04 : x
  2. Step 2: Convert to fraction form
    28,892,391.30/39,870,637.02 = 15,839,204.04/x
  3. Step 3: Cross multiply
    28,892,391.30x = 39,870,637.02 × 15,839,204.04
  4. Step 4: Simplify right side
    28,892,391.30x = 631,519,154,964,557.62
  5. Step 5: Solve for x
    x = 631,519,154,964,557.62/28,892,391.30
  6. Step 6: Final answer
    x = 21,857,628.48

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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.