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Finding the Fourth Proportional to 66,429,798.30, 99,644,697.45 and 18,560,742.30

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Solution

The fourth proportional to 66,429,798.30, 99,644,697.45 and 18,560,742.30 is: 27,841,113.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,798.30 : 99,644,697.45 = 18,560,742.30 : x
  2. Step 2: Convert to fraction form
    66,429,798.30/99,644,697.45 = 18,560,742.30/x
  3. Step 3: Cross multiply
    66,429,798.30x = 99,644,697.45 × 18,560,742.30
  4. Step 4: Simplify right side
    66,429,798.30x = 1,849,479,550,930,917.25
  5. Step 5: Solve for x
    x = 1,849,479,550,930,917.25/66,429,798.30
  6. Step 6: Final answer
    x = 27,841,113.45

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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.