Home / 15,862,909-21,890,945.64-8,619,565

Finding the Fourth Proportional to 15,862,909, 21,890,945.64 and 8,619,565

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Solution

The fourth proportional to 15,862,909, 21,890,945.64 and 8,619,565 is: 11,895,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862,909 : 21,890,945.64 = 8,619,565 : x
  2. Step 2: Convert to fraction form
    15,862,909/21,890,945.64 = 8,619,565/x
  3. Step 3: Cross multiply
    15,862,909x = 21,890,945.64 × 8,619,565
  4. Step 4: Simplify right side
    15,862,909x = 188,690,428,855,446.59
  5. Step 5: Solve for x
    x = 188,690,428,855,446.59/15,862,909
  6. Step 6: Final answer
    x = 11,895,071.00

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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.