Home / 12,516,235.12-18,740,715.60-7,942,521.02

Finding the Fourth Proportional to 12,516,235.12, 18,740,715.60 and 7,942,521.02

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Solution

The fourth proportional to 12,516,235.12, 18,740,715.60 and 7,942,521.02 is: 11,892,436.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,516,235.12 : 18,740,715.60 = 7,942,521.02 : x
  2. Step 2: Convert to fraction form
    12,516,235.12/18,740,715.60 = 7,942,521.02/x
  3. Step 3: Cross multiply
    12,516,235.12x = 18,740,715.60 × 7,942,521.02
  4. Step 4: Simplify right side
    12,516,235.12x = 148,848,527,463,078.91
  5. Step 5: Solve for x
    x = 148,848,527,463,078.91/12,516,235.12
  6. Step 6: Final answer
    x = 11,892,436.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.