Home / 21,390,557.35-29,522,742.37-12,693,525.38

Finding the Fourth Proportional to 21,390,557.35, 29,522,742.37 and 12,693,525.38

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Solution

The fourth proportional to 21,390,557.35, 29,522,742.37 and 12,693,525.38 is: 17,519,304.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,390,557.35 : 29,522,742.37 = 12,693,525.38 : x
  2. Step 2: Convert to fraction form
    21,390,557.35/29,522,742.37 = 12,693,525.38/x
  3. Step 3: Cross multiply
    21,390,557.35x = 29,522,742.37 × 12,693,525.38
  4. Step 4: Simplify right side
    21,390,557.35x = 374,747,679,497,328.75
  5. Step 5: Solve for x
    x = 374,747,679,497,328.75/21,390,557.35
  6. Step 6: Final answer
    x = 17,519,304.12

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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.