Home / 12,172,685.28-16,798,100.40-6,740,060.64

Finding the Fourth Proportional to 12,172,685.28, 16,798,100.40 and 6,740,060.64

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Solution

The fourth proportional to 12,172,685.28, 16,798,100.40 and 6,740,060.64 is: 9,301,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172,685.28 : 16,798,100.40 = 6,740,060.64 : x
  2. Step 2: Convert to fraction form
    12,172,685.28/16,798,100.40 = 6,740,060.64/x
  3. Step 3: Cross multiply
    12,172,685.28x = 16,798,100.40 × 6,740,060.64
  4. Step 4: Simplify right side
    12,172,685.28x = 113,220,215,332,808.23
  5. Step 5: Solve for x
    x = 113,220,215,332,808.23/12,172,685.28
  6. Step 6: Final answer
    x = 9,301,170.02

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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.