Home / 20,713,108.12-28,596,335.70-18,414,907

Finding the Fourth Proportional to 20,713,108.12, 28,596,335.70 and 18,414,907

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Solution

The fourth proportional to 20,713,108.12, 28,596,335.70 and 18,414,907 is: 25,423,459.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,713,108.12 : 28,596,335.70 = 18,414,907 : x
  2. Step 2: Convert to fraction form
    20,713,108.12/28,596,335.70 = 18,414,907/x
  3. Step 3: Cross multiply
    20,713,108.12x = 28,596,335.70 × 18,414,907
  4. Step 4: Simplify right side
    20,713,108.12x = 526,598,862,456,279.88
  5. Step 5: Solve for x
    x = 526,598,862,456,279.88/20,713,108.12
  6. Step 6: Final answer
    x = 25,423,459.36

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1.5x scale

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.