Home / 10,078,736.61-13,909,837.29-5,728,476.84

Finding the Fourth Proportional to 10,078,736.61, 13,909,837.29 and 5,728,476.84

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Solution

The fourth proportional to 10,078,736.61, 13,909,837.29 and 5,728,476.84 is: 7,905,969.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,078,736.61 : 13,909,837.29 = 5,728,476.84 : x
  2. Step 2: Convert to fraction form
    10,078,736.61/13,909,837.29 = 5,728,476.84/x
  3. Step 3: Cross multiply
    10,078,736.61x = 13,909,837.29 × 5,728,476.84
  4. Step 4: Simplify right side
    10,078,736.61x = 79,682,180,690,289.69
  5. Step 5: Solve for x
    x = 79,682,180,690,289.69/10,078,736.61
  6. Step 6: Final answer
    x = 7,905,969.15

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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.