Home / 66,429,328.30-99,643,992.45-18,560,272.30

Finding the Fourth Proportional to 66,429,328.30, 99,643,992.45 and 18,560,272.30

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Solution

The fourth proportional to 66,429,328.30, 99,643,992.45 and 18,560,272.30 is: 27,840,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,429,328.30 : 99,643,992.45 = 18,560,272.30 : x
  2. Step 2: Convert to fraction form
    66,429,328.30/99,643,992.45 = 18,560,272.30/x
  3. Step 3: Cross multiply
    66,429,328.30x = 99,643,992.45 × 18,560,272.30
  4. Step 4: Simplify right side
    66,429,328.30x = 1,849,419,632,931,144.25
  5. Step 5: Solve for x
    x = 1,849,419,632,931,144.25/66,429,328.30
  6. Step 6: Final answer
    x = 27,840,408.45

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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.