Home / 18,144,905.76-27,217,566-7,768,730.40

Finding the Fourth Proportional to 18,144,905.76, 27,217,566 and 7,768,730.40

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Solution

The fourth proportional to 18,144,905.76, 27,217,566 and 7,768,730.40 is: 11,653,184.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,144,905.76 : 27,217,566 = 7,768,730.40 : x
  2. Step 2: Convert to fraction form
    18,144,905.76/27,217,566 = 7,768,730.40/x
  3. Step 3: Cross multiply
    18,144,905.76x = 27,217,566 × 7,768,730.40
  4. Step 4: Simplify right side
    18,144,905.76x = 211,445,932,398,206.41
  5. Step 5: Solve for x
    x = 211,445,932,398,206.41/18,144,905.76
  6. Step 6: Final answer
    x = 11,653,184.38

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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.