Home / 15,479,789.48-21,362,123.12-8,510,585.58

Finding the Fourth Proportional to 15,479,789.48, 21,362,123.12 and 8,510,585.58

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Solution

The fourth proportional to 15,479,789.48, 21,362,123.12 and 8,510,585.58 is: 11,744,615.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,479,789.48 : 21,362,123.12 = 8,510,585.58 : x
  2. Step 2: Convert to fraction form
    15,479,789.48/21,362,123.12 = 8,510,585.58/x
  3. Step 3: Cross multiply
    15,479,789.48x = 21,362,123.12 × 8,510,585.58
  4. Step 4: Simplify right side
    15,479,789.48x = 181,804,176,983,256.62
  5. Step 5: Solve for x
    x = 181,804,176,983,256.62/15,479,789.48
  6. Step 6: Final answer
    x = 11,744,615.60

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1.5x scale

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.