Home / 208,673,216.40-312,885,408.60-127,952,115.60

Finding the Fourth Proportional to 208,673,216.40, 312,885,408.60 and 127,952,115.60

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Solution

The fourth proportional to 208,673,216.40, 312,885,408.60 and 127,952,115.60 is: 191,851,885.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673,216.40 : 312,885,408.60 = 127,952,115.60 : x
  2. Step 2: Convert to fraction form
    208,673,216.40/312,885,408.60 = 127,952,115.60/x
  3. Step 3: Cross multiply
    208,673,216.40x = 312,885,408.60 × 127,952,115.60
  4. Step 4: Simplify right side
    208,673,216.40x = 40,034,349,970,740,432
  5. Step 5: Solve for x
    x = 40,034,349,970,740,432/208,673,216.40
  6. Step 6: Final answer
    x = 191,851,885.27

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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.