Home / 21,199,871.79-29,248,372.44-13,862,000.16

Finding the Fourth Proportional to 21,199,871.79, 29,248,372.44 and 13,862,000.16

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Solution

The fourth proportional to 21,199,871.79, 29,248,372.44 and 13,862,000.16 is: 19,124,688.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,199,871.79 : 29,248,372.44 = 13,862,000.16 : x
  2. Step 2: Convert to fraction form
    21,199,871.79/29,248,372.44 = 13,862,000.16/x
  3. Step 3: Cross multiply
    21,199,871.79x = 29,248,372.44 × 13,862,000.16
  4. Step 4: Simplify right side
    21,199,871.79x = 405,440,943,443,019.62
  5. Step 5: Solve for x
    x = 405,440,943,443,019.62/21,199,871.79
  6. Step 6: Final answer
    x = 19,124,688.46

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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.