Home / 21,219,226.32-31,765,398.72-12,995,976.12

Finding the Fourth Proportional to 21,219,226.32, 31,765,398.72 and 12,995,976.12

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Solution

The fourth proportional to 21,219,226.32, 31,765,398.72 and 12,995,976.12 is: 19,455,109.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,219,226.32 : 31,765,398.72 = 12,995,976.12 : x
  2. Step 2: Convert to fraction form
    21,219,226.32/31,765,398.72 = 12,995,976.12/x
  3. Step 3: Cross multiply
    21,219,226.32x = 31,765,398.72 × 12,995,976.12
  4. Step 4: Simplify right side
    21,219,226.32x = 412,822,363,207,398.50
  5. Step 5: Solve for x
    x = 412,822,363,207,398.50/21,219,226.32
  6. Step 6: Final answer
    x = 19,455,109.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.