Home / 21,315,065.40-29,414,769.51-11,525,486.13

Finding the Fourth Proportional to 21,315,065.40, 29,414,769.51 and 11,525,486.13

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Solution

The fourth proportional to 21,315,065.40, 29,414,769.51 and 11,525,486.13 is: 15,905,159.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,065.40 : 29,414,769.51 = 11,525,486.13 : x
  2. Step 2: Convert to fraction form
    21,315,065.40/29,414,769.51 = 11,525,486.13/x
  3. Step 3: Cross multiply
    21,315,065.40x = 29,414,769.51 × 11,525,486.13
  4. Step 4: Simplify right side
    21,315,065.40x = 339,019,518,004,651.94
  5. Step 5: Solve for x
    x = 339,019,518,004,651.94/21,315,065.40
  6. Step 6: Final answer
    x = 15,905,159.64

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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.