Home / 12,915,502.84-19,373,280.92-12,126,312.96

Finding the Fourth Proportional to 12,915,502.84, 19,373,280.92 and 12,126,312.96

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Solution

The fourth proportional to 12,915,502.84, 19,373,280.92 and 12,126,312.96 is: 18,189,494.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,915,502.84 : 19,373,280.92 = 12,126,312.96 : x
  2. Step 2: Convert to fraction form
    12,915,502.84/19,373,280.92 = 12,126,312.96/x
  3. Step 3: Cross multiply
    12,915,502.84x = 19,373,280.92 × 12,126,312.96
  4. Step 4: Simplify right side
    12,915,502.84x = 234,926,467,497,916.75
  5. Step 5: Solve for x
    x = 234,926,467,497,916.75/12,915,502.84
  6. Step 6: Final answer
    x = 18,189,494.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.