Home / 21,579,957.60-29,779,992.84-11,790,191.04

Finding the Fourth Proportional to 21,579,957.60, 29,779,992.84 and 11,790,191.04

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Solution

The fourth proportional to 21,579,957.60, 29,779,992.84 and 11,790,191.04 is: 16,270,273.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579,957.60 : 29,779,992.84 = 11,790,191.04 : x
  2. Step 2: Convert to fraction form
    21,579,957.60/29,779,992.84 = 11,790,191.04/x
  3. Step 3: Cross multiply
    21,579,957.60x = 29,779,992.84 × 11,790,191.04
  4. Step 4: Simplify right side
    21,579,957.60x = 351,111,804,753,432.12
  5. Step 5: Solve for x
    x = 351,111,804,753,432.12/21,579,957.60
  6. Step 6: Final answer
    x = 16,270,273.15

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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.