Home / 12,900,919.41-17,803,272.29-7,099,700.22

Finding the Fourth Proportional to 12,900,919.41, 17,803,272.29 and 7,099,700.22

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Solution

The fourth proportional to 12,900,919.41, 17,803,272.29 and 7,099,700.22 is: 9,797,588.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900,919.41 : 17,803,272.29 = 7,099,700.22 : x
  2. Step 2: Convert to fraction form
    12,900,919.41/17,803,272.29 = 7,099,700.22/x
  3. Step 3: Cross multiply
    12,900,919.41x = 17,803,272.29 × 7,099,700.22
  4. Step 4: Simplify right side
    12,900,919.41x = 126,397,896,158,534.41
  5. Step 5: Solve for x
    x = 126,397,896,158,534.41/12,900,919.41
  6. Step 6: Final answer
    x = 9,797,588.23

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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.