Home / 15,802,196.61-21,808,801.09-8,927,121.54

Finding the Fourth Proportional to 15,802,196.61, 21,808,801.09 and 8,927,121.54

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Solution

The fourth proportional to 15,802,196.61, 21,808,801.09 and 8,927,121.54 is: 12,320,427.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,802,196.61 : 21,808,801.09 = 8,927,121.54 : x
  2. Step 2: Convert to fraction form
    15,802,196.61/21,808,801.09 = 8,927,121.54/x
  3. Step 3: Cross multiply
    15,802,196.61x = 21,808,801.09 × 8,927,121.54
  4. Step 4: Simplify right side
    15,802,196.61x = 194,689,817,868,013.69
  5. Step 5: Solve for x
    x = 194,689,817,868,013.69/15,802,196.61
  6. Step 6: Final answer
    x = 12,320,427.52

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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.