Home / 12,922,136.30-17,832,666.03-7,121,126.18

Finding the Fourth Proportional to 12,922,136.30, 17,832,666.03 and 7,121,126.18

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Solution

The fourth proportional to 12,922,136.30, 17,832,666.03 and 7,121,126.18 is: 9,827,219.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922,136.30 : 17,832,666.03 = 7,121,126.18 : x
  2. Step 2: Convert to fraction form
    12,922,136.30/17,832,666.03 = 7,121,126.18/x
  3. Step 3: Cross multiply
    12,922,136.30x = 17,832,666.03 × 7,121,126.18
  4. Step 4: Simplify right side
    12,922,136.30x = 126,988,664,925,429.67
  5. Step 5: Solve for x
    x = 126,988,664,925,429.67/12,922,136.30
  6. Step 6: Final answer
    x = 9,827,219.12

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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.