Home / 266,743,421.30-400,367,074.35-164,706,749.30

Finding the Fourth Proportional to 266,743,421.30, 400,367,074.35 and 164,706,749.30

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Solution

The fourth proportional to 266,743,421.30, 400,367,074.35 and 164,706,749.30 is: 247,215,691.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,743,421.30 : 400,367,074.35 = 164,706,749.30 : x
  2. Step 2: Convert to fraction form
    266,743,421.30/400,367,074.35 = 164,706,749.30/x
  3. Step 3: Cross multiply
    266,743,421.30x = 400,367,074.35 × 164,706,749.30
  4. Step 4: Simplify right side
    266,743,421.30x = 65,943,159,342,939,920
  5. Step 5: Solve for x
    x = 65,943,159,342,939,920/266,743,421.30
  6. Step 6: Final answer
    x = 247,215,691.47

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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.