Home / 15,479,789.72-21,362,123.48-8,510,585.83

Finding the Fourth Proportional to 15,479,789.72, 21,362,123.48 and 8,510,585.83

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Solution

The fourth proportional to 15,479,789.72, 21,362,123.48 and 8,510,585.83 is: 11,744,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479,789.72 : 21,362,123.48 = 8,510,585.83 : x
  2. Step 2: Convert to fraction form
    15,479,789.72/21,362,123.48 = 8,510,585.83/x
  3. Step 3: Cross multiply
    15,479,789.72x = 21,362,123.48 × 8,510,585.83
  4. Step 4: Simplify right side
    15,479,789.72x = 181,804,185,291,640.06
  5. Step 5: Solve for x
    x = 181,804,185,291,640.06/15,479,789.72
  6. Step 6: Final answer
    x = 11,744,615.96

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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.