Home / 10,860,693.28-16,294,578.72-5,180,178.40

Finding the Fourth Proportional to 10,860,693.28, 16,294,578.72 and 5,180,178.40

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Solution

The fourth proportional to 10,860,693.28, 16,294,578.72 and 5,180,178.40 is: 7,771,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,860,693.28 : 16,294,578.72 = 5,180,178.40 : x
  2. Step 2: Convert to fraction form
    10,860,693.28/16,294,578.72 = 5,180,178.40/x
  3. Step 3: Cross multiply
    10,860,693.28x = 16,294,578.72 × 5,180,178.40
  4. Step 4: Simplify right side
    10,860,693.28x = 84,408,824,722,443.66
  5. Step 5: Solve for x
    x = 84,408,824,722,443.66/10,860,693.28
  6. Step 6: Final answer
    x = 7,771,955.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.