Home / 15,718,024.09-21,681,679.58-10,215,064.12

Finding the Fourth Proportional to 15,718,024.09, 21,681,679.58 and 10,215,064.12

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Solution

The fourth proportional to 15,718,024.09, 21,681,679.58 and 10,215,064.12 is: 14,090,813.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,718,024.09 : 21,681,679.58 = 10,215,064.12 : x
  2. Step 2: Convert to fraction form
    15,718,024.09/21,681,679.58 = 10,215,064.12/x
  3. Step 3: Cross multiply
    15,718,024.09x = 21,681,679.58 × 10,215,064.12
  4. Step 4: Simplify right side
    15,718,024.09x = 221,479,747,066,019.91
  5. Step 5: Solve for x
    x = 221,479,747,066,019.91/15,718,024.09
  6. Step 6: Final answer
    x = 14,090,813.56

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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.