Home / 15,713,768.88-21,681,749.46-9,186,136

Finding the Fourth Proportional to 15,713,768.88, 21,681,749.46 and 9,186,136

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Solution

The fourth proportional to 15,713,768.88, 21,681,749.46 and 9,186,136 is: 12,674,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713,768.88 : 21,681,749.46 = 9,186,136 : x
  2. Step 2: Convert to fraction form
    15,713,768.88/21,681,749.46 = 9,186,136/x
  3. Step 3: Cross multiply
    15,713,768.88x = 21,681,749.46 × 9,186,136
  4. Step 4: Simplify right side
    15,713,768.88x = 199,171,499,257,486.56
  5. Step 5: Solve for x
    x = 199,171,499,257,486.56/15,713,768.88
  6. Step 6: Final answer
    x = 12,674,966.83

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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.