Home / 85,247,877.72-117,563,569.74-55,868,506.68

Finding the Fourth Proportional to 85,247,877.72, 117,563,569.74 and 55,868,506.68

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Solution

The fourth proportional to 85,247,877.72, 117,563,569.74 and 55,868,506.68 is: 77,047,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,247,877.72 : 117,563,569.74 = 55,868,506.68 : x
  2. Step 2: Convert to fraction form
    85,247,877.72/117,563,569.74 = 55,868,506.68/x
  3. Step 3: Cross multiply
    85,247,877.72x = 117,563,569.74 × 55,868,506.68
  4. Step 4: Simplify right side
    85,247,877.72x = 6,568,101,081,343,836
  5. Step 5: Solve for x
    x = 6,568,101,081,343,836/85,247,877.72
  6. Step 6: Final answer
    x = 77,047,092.05

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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.