Home / 15,862,799-21,890,793.84-8,619,455

Finding the Fourth Proportional to 15,862,799, 21,890,793.84 and 8,619,455

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Solution

The fourth proportional to 15,862,799, 21,890,793.84 and 8,619,455 is: 11,894,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862,799 : 21,890,793.84 = 8,619,455 : x
  2. Step 2: Convert to fraction form
    15,862,799/21,890,793.84 = 8,619,455/x
  3. Step 3: Cross multiply
    15,862,799x = 21,890,793.84 × 8,619,455
  4. Step 4: Simplify right side
    15,862,799x = 188,686,712,418,157.19
  5. Step 5: Solve for x
    x = 188,686,712,418,157.19/15,862,799
  6. Step 6: Final answer
    x = 11,894,919.20

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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.