Home / 21,291,206.30-31,936,809.45-11,701,648.70

Finding the Fourth Proportional to 21,291,206.30, 31,936,809.45 and 11,701,648.70

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Solution

The fourth proportional to 21,291,206.30, 31,936,809.45 and 11,701,648.70 is: 17,552,473.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291,206.30 : 31,936,809.45 = 11,701,648.70 : x
  2. Step 2: Convert to fraction form
    21,291,206.30/31,936,809.45 = 11,701,648.70/x
  3. Step 3: Cross multiply
    21,291,206.30x = 31,936,809.45 × 11,701,648.70
  4. Step 4: Simplify right side
    21,291,206.30x = 373,713,324,782,740.19
  5. Step 5: Solve for x
    x = 373,713,324,782,740.19/21,291,206.30
  6. Step 6: Final answer
    x = 17,552,473.05

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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.