Home / 15,316,410.12-21,136,646.18-8,440,892.12

Finding the Fourth Proportional to 15,316,410.12, 21,136,646.18 and 8,440,892.12

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Solution

The fourth proportional to 15,316,410.12, 21,136,646.18 and 8,440,892.12 is: 11,648,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316,410.12 : 21,136,646.18 = 8,440,892.12 : x
  2. Step 2: Convert to fraction form
    15,316,410.12/21,136,646.18 = 8,440,892.12/x
  3. Step 3: Cross multiply
    15,316,410.12x = 21,136,646.18 × 8,440,892.12
  4. Step 4: Simplify right side
    15,316,410.12x = 178,412,150,183,990.09
  5. Step 5: Solve for x
    x = 178,412,150,183,990.09/15,316,410.12
  6. Step 6: Final answer
    x = 11,648,431.24

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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.