Home / 85,247,875.72-117,563,566.98-55,868,504.68

Finding the Fourth Proportional to 85,247,875.72, 117,563,566.98 and 55,868,504.68

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Solution

The fourth proportional to 85,247,875.72, 117,563,566.98 and 55,868,504.68 is: 77,047,089.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,247,875.72 : 117,563,566.98 = 55,868,504.68 : x
  2. Step 2: Convert to fraction form
    85,247,875.72/117,563,566.98 = 55,868,504.68/x
  3. Step 3: Cross multiply
    85,247,875.72x = 117,563,566.98 × 55,868,504.68
  4. Step 4: Simplify right side
    85,247,875.72x = 6,568,100,692,019,624
  5. Step 5: Solve for x
    x = 6,568,100,692,019,624/85,247,875.72
  6. Step 6: Final answer
    x = 77,047,089.29

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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.