Home / 15,479,658.90-21,362,185.08-8,510,631.12

Finding the Fourth Proportional to 15,479,658.90, 21,362,185.08 and 8,510,631.12

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Solution

The fourth proportional to 15,479,658.90, 21,362,185.08 and 8,510,631.12 is: 11,744,811.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479,658.90 : 21,362,185.08 = 8,510,631.12 : x
  2. Step 2: Convert to fraction form
    15,479,658.90/21,362,185.08 = 8,510,631.12/x
  3. Step 3: Cross multiply
    15,479,658.90x = 21,362,185.08 × 8,510,631.12
  4. Step 4: Simplify right side
    15,479,658.90x = 181,805,677,133,047.66
  5. Step 5: Solve for x
    x = 181,805,677,133,047.66/15,479,658.90
  6. Step 6: Final answer
    x = 11,744,811.58

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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.