Home / 15,392,846.91-21,240,681.51-10,421,174.25

Finding the Fourth Proportional to 15,392,846.91, 21,240,681.51 and 10,421,174.25

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Solution

The fourth proportional to 15,392,846.91, 21,240,681.51 and 10,421,174.25 is: 14,380,240.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,392,846.91 : 21,240,681.51 = 10,421,174.25 : x
  2. Step 2: Convert to fraction form
    15,392,846.91/21,240,681.51 = 10,421,174.25/x
  3. Step 3: Cross multiply
    15,392,846.91x = 21,240,681.51 × 10,421,174.25
  4. Step 4: Simplify right side
    15,392,846.91x = 221,352,843,204,463.12
  5. Step 5: Solve for x
    x = 221,352,843,204,463.12/15,392,846.91
  6. Step 6: Final answer
    x = 14,380,240.67

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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.