Home / 21,650,241.72-29,877,331.05-12,948,412.98

Finding the Fourth Proportional to 21,650,241.72, 29,877,331.05 and 12,948,412.98

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Solution

The fourth proportional to 21,650,241.72, 29,877,331.05 and 12,948,412.98 is: 17,868,808.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,650,241.72 : 29,877,331.05 = 12,948,412.98 : x
  2. Step 2: Convert to fraction form
    21,650,241.72/29,877,331.05 = 12,948,412.98/x
  3. Step 3: Cross multiply
    21,650,241.72x = 29,877,331.05 × 12,948,412.98
  4. Step 4: Simplify right side
    21,650,241.72x = 386,864,021,175,577.06
  5. Step 5: Solve for x
    x = 386,864,021,175,577.06/21,650,241.72
  6. Step 6: Final answer
    x = 17,868,808.40

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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.