Home / 12,988,200.96-19,476,542.36-6,921,801.92

Finding the Fourth Proportional to 12,988,200.96, 19,476,542.36 and 6,921,801.92

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Solution

The fourth proportional to 12,988,200.96, 19,476,542.36 and 6,921,801.92 is: 10,379,633.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,988,200.96 : 19,476,542.36 = 6,921,801.92 : x
  2. Step 2: Convert to fraction form
    12,988,200.96/19,476,542.36 = 6,921,801.92/x
  3. Step 3: Cross multiply
    12,988,200.96x = 19,476,542.36 × 6,921,801.92
  4. Step 4: Simplify right side
    12,988,200.96x = 134,812,768,302,409.33
  5. Step 5: Solve for x
    x = 134,812,768,302,409.33/12,988,200.96
  6. Step 6: Final answer
    x = 10,379,633.69

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1.5x scale

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.