Home / 12,402,537.21-17,115,053.42-6,820,735.55

Finding the Fourth Proportional to 12,402,537.21, 17,115,053.42 and 6,820,735.55

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Solution

The fourth proportional to 12,402,537.21, 17,115,053.42 and 6,820,735.55 is: 9,412,368.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,402,537.21 : 17,115,053.42 = 6,820,735.55 : x
  2. Step 2: Convert to fraction form
    12,402,537.21/17,115,053.42 = 6,820,735.55/x
  3. Step 3: Cross multiply
    12,402,537.21x = 17,115,053.42 × 6,820,735.55
  4. Step 4: Simplify right side
    12,402,537.21x = 116,737,253,233,419.64
  5. Step 5: Solve for x
    x = 116,737,253,233,419.64/12,402,537.21
  6. Step 6: Final answer
    x = 9,412,368.72

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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.