Home / 18,519,390.72-25,554,335.59-10,679,192.54

Finding the Fourth Proportional to 18,519,390.72, 25,554,335.59 and 10,679,192.54

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Solution

The fourth proportional to 18,519,390.72, 25,554,335.59 and 10,679,192.54 is: 14,735,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519,390.72 : 25,554,335.59 = 10,679,192.54 : x
  2. Step 2: Convert to fraction form
    18,519,390.72/25,554,335.59 = 10,679,192.54/x
  3. Step 3: Cross multiply
    18,519,390.72x = 25,554,335.59 × 10,679,192.54
  4. Step 4: Simplify right side
    18,519,390.72x = 272,899,669,997,384.47
  5. Step 5: Solve for x
    x = 272,899,669,997,384.47/18,519,390.72
  6. Step 6: Final answer
    x = 14,735,888.14

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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.