Home / 12,787,098.51-19,192,774.04-7,914,666.34

Finding the Fourth Proportional to 12,787,098.51, 19,192,774.04 and 7,914,666.34

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Solution

The fourth proportional to 12,787,098.51, 19,192,774.04 and 7,914,666.34 is: 11,879,505.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,787,098.51 : 19,192,774.04 = 7,914,666.34 : x
  2. Step 2: Convert to fraction form
    12,787,098.51/19,192,774.04 = 7,914,666.34/x
  3. Step 3: Cross multiply
    12,787,098.51x = 19,192,774.04 × 7,914,666.34
  4. Step 4: Simplify right side
    12,787,098.51x = 151,904,402,665,613.81
  5. Step 5: Solve for x
    x = 151,904,402,665,613.81/12,787,098.51
  6. Step 6: Final answer
    x = 11,879,505.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.