Home / 21,023,807.18-29,012,039.12-11,730,894.26

Finding the Fourth Proportional to 21,023,807.18, 29,012,039.12 and 11,730,894.26

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Solution

The fourth proportional to 21,023,807.18, 29,012,039.12 and 11,730,894.26 is: 16,188,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,023,807.18 : 29,012,039.12 = 11,730,894.26 : x
  2. Step 2: Convert to fraction form
    21,023,807.18/29,012,039.12 = 11,730,894.26/x
  3. Step 3: Cross multiply
    21,023,807.18x = 29,012,039.12 × 11,730,894.26
  4. Step 4: Simplify right side
    21,023,807.18x = 340,337,163,067,970.50
  5. Step 5: Solve for x
    x = 340,337,163,067,970.50/21,023,807.18
  6. Step 6: Final answer
    x = 16,188,179.44

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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.