Home / 18,266,898-27,397,984.86-8,688,362.88

Finding the Fourth Proportional to 18,266,898, 27,397,984.86 and 8,688,362.88

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Solution

The fourth proportional to 18,266,898, 27,397,984.86 and 8,688,362.88 is: 13,031,420.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,266,898 : 27,397,984.86 = 8,688,362.88 : x
  2. Step 2: Convert to fraction form
    18,266,898/27,397,984.86 = 8,688,362.88/x
  3. Step 3: Cross multiply
    18,266,898x = 27,397,984.86 × 8,688,362.88
  4. Step 4: Simplify right side
    18,266,898x = 238,043,634,644,426
  5. Step 5: Solve for x
    x = 238,043,634,644,426/18,266,898
  6. Step 6: Final answer
    x = 13,031,420.81

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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.