Home / 85,247,874.72-117,563,565.60-55,868,503.68

Finding the Fourth Proportional to 85,247,874.72, 117,563,565.60 and 55,868,503.68

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Solution

The fourth proportional to 85,247,874.72, 117,563,565.60 and 55,868,503.68 is: 77,047,087.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,247,874.72 : 117,563,565.60 = 55,868,503.68 : x
  2. Step 2: Convert to fraction form
    85,247,874.72/117,563,565.60 = 55,868,503.68/x
  3. Step 3: Cross multiply
    85,247,874.72x = 117,563,565.60 × 55,868,503.68
  4. Step 4: Simplify right side
    85,247,874.72x = 6,568,100,497,357,521
  5. Step 5: Solve for x
    x = 6,568,100,497,357,521/85,247,874.72
  6. Step 6: Final answer
    x = 77,047,087.91

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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.