Home / 12,701,310.34-18,955,981-11,475,490.76

Finding the Fourth Proportional to 12,701,310.34, 18,955,981 and 11,475,490.76

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Solution

The fourth proportional to 12,701,310.34, 18,955,981 and 11,475,490.76 is: 17,126,515.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701,310.34 : 18,955,981 = 11,475,490.76 : x
  2. Step 2: Convert to fraction form
    12,701,310.34/18,955,981 = 11,475,490.76/x
  3. Step 3: Cross multiply
    12,701,310.34x = 18,955,981 × 11,475,490.76
  4. Step 4: Simplify right side
    12,701,310.34x = 217,529,184,812,235.56
  5. Step 5: Solve for x
    x = 217,529,184,812,235.56/12,701,310.34
  6. Step 6: Final answer
    x = 17,126,515.22

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.