Home / 21,315,638.35-31,961,218.37-8,346,604.42

Finding the Fourth Proportional to 21,315,638.35, 31,961,218.37 and 8,346,604.42

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Solution

The fourth proportional to 21,315,638.35, 31,961,218.37 and 8,346,604.42 is: 12,515,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,638.35 : 31,961,218.37 = 8,346,604.42 : x
  2. Step 2: Convert to fraction form
    21,315,638.35/31,961,218.37 = 8,346,604.42/x
  3. Step 3: Cross multiply
    21,315,638.35x = 31,961,218.37 × 8,346,604.42
  4. Step 4: Simplify right side
    21,315,638.35x = 266,767,646,357,534.50
  5. Step 5: Solve for x
    x = 266,767,646,357,534.50/21,315,638.35
  6. Step 6: Final answer
    x = 12,515,114.12

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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.