Home / 15,678,676.23-21,637,180.56-8,709,882.93

Finding the Fourth Proportional to 15,678,676.23, 21,637,180.56 and 8,709,882.93

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Solution

The fourth proportional to 15,678,676.23, 21,637,180.56 and 8,709,882.93 is: 12,019,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678,676.23 : 21,637,180.56 = 8,709,882.93 : x
  2. Step 2: Convert to fraction form
    15,678,676.23/21,637,180.56 = 8,709,882.93/x
  3. Step 3: Cross multiply
    15,678,676.23x = 21,637,180.56 × 8,709,882.93
  4. Step 4: Simplify right side
    15,678,676.23x = 188,457,309,612,871.81
  5. Step 5: Solve for x
    x = 188,457,309,612,871.81/15,678,676.23
  6. Step 6: Final answer
    x = 12,019,975.85

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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.