Home / 12,987,292.34-17,922,484.42-7,186,318.58

Finding the Fourth Proportional to 12,987,292.34, 17,922,484.42 and 7,186,318.58

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Solution

The fourth proportional to 12,987,292.34, 17,922,484.42 and 7,186,318.58 is: 9,917,131.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,987,292.34 : 17,922,484.42 = 7,186,318.58 : x
  2. Step 2: Convert to fraction form
    12,987,292.34/17,922,484.42 = 7,186,318.58/x
  3. Step 3: Cross multiply
    12,987,292.34x = 17,922,484.42 × 7,186,318.58
  4. Step 4: Simplify right side
    12,987,292.34x = 128,796,682,679,628.31
  5. Step 5: Solve for x
    x = 128,796,682,679,628.31/12,987,292.34
  6. Step 6: Final answer
    x = 9,917,131.25

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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.