Home / 18,909,989.31-26,096,754.95-11,565,515.66

Finding the Fourth Proportional to 18,909,989.31, 26,096,754.95 and 11,565,515.66

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Solution

The fourth proportional to 18,909,989.31, 26,096,754.95 and 11,565,515.66 is: 15,961,004.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,909,989.31 : 26,096,754.95 = 11,565,515.66 : x
  2. Step 2: Convert to fraction form
    18,909,989.31/26,096,754.95 = 11,565,515.66/x
  3. Step 3: Cross multiply
    18,909,989.31x = 26,096,754.95 × 11,565,515.66
  4. Step 4: Simplify right side
    18,909,989.31x = 301,822,428,049,407.50
  5. Step 5: Solve for x
    x = 301,822,428,049,407.50/18,909,989.31
  6. Step 6: Final answer
    x = 15,961,004.69

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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.