Home / 18,136,686.84-25,028,141.04-9,876,584.40

Finding the Fourth Proportional to 18,136,686.84, 25,028,141.04 and 9,876,584.40

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Solution

The fourth proportional to 18,136,686.84, 25,028,141.04 and 9,876,584.40 is: 13,629,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,136,686.84 : 25,028,141.04 = 9,876,584.40 : x
  2. Step 2: Convert to fraction form
    18,136,686.84/25,028,141.04 = 9,876,584.40/x
  3. Step 3: Cross multiply
    18,136,686.84x = 25,028,141.04 × 9,876,584.40
  4. Step 4: Simplify right side
    18,136,686.84x = 247,192,547,356,663.78
  5. Step 5: Solve for x
    x = 247,192,547,356,663.78/18,136,686.84
  6. Step 6: Final answer
    x = 13,629,421.38

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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.