Home / 21,199,872.79-29,248,373.82-13,862,001.16

Finding the Fourth Proportional to 21,199,872.79, 29,248,373.82 and 13,862,001.16

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Solution

The fourth proportional to 21,199,872.79, 29,248,373.82 and 13,862,001.16 is: 19,124,689.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199,872.79 : 29,248,373.82 = 13,862,001.16 : x
  2. Step 2: Convert to fraction form
    21,199,872.79/29,248,373.82 = 13,862,001.16/x
  3. Step 3: Cross multiply
    21,199,872.79x = 29,248,373.82 × 13,862,001.16
  4. Step 4: Simplify right side
    21,199,872.79x = 405,440,991,820,953.62
  5. Step 5: Solve for x
    x = 405,440,991,820,953.62/21,199,872.79
  6. Step 6: Final answer
    x = 19,124,689.84

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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.