Home / 30,266,881.88-41,749,655.12-21,567,865.20

Finding the Fourth Proportional to 30,266,881.88, 41,749,655.12 and 21,567,865.20

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Solution

The fourth proportional to 30,266,881.88, 41,749,655.12 and 21,567,865.20 is: 29,750,369.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,266,881.88 : 41,749,655.12 = 21,567,865.20 : x
  2. Step 2: Convert to fraction form
    30,266,881.88/41,749,655.12 = 21,567,865.20/x
  3. Step 3: Cross multiply
    30,266,881.88x = 41,749,655.12 × 21,567,865.20
  4. Step 4: Simplify right side
    30,266,881.88x = 900,450,933,774,649.75
  5. Step 5: Solve for x
    x = 900,450,933,774,649.75/30,266,881.88
  6. Step 6: Final answer
    x = 29,750,369.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.