Home / 161,686,845.60-242,682,483.60-85,064,863.20

Finding the Fourth Proportional to 161,686,845.60, 242,682,483.60 and 85,064,863.20

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Solution

The fourth proportional to 161,686,845.60, 242,682,483.60 and 85,064,863.20 is: 127,677,376.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,686,845.60 : 242,682,483.60 = 85,064,863.20 : x
  2. Step 2: Convert to fraction form
    161,686,845.60/242,682,483.60 = 85,064,863.20/x
  3. Step 3: Cross multiply
    161,686,845.60x = 242,682,483.60 × 85,064,863.20
  4. Step 4: Simplify right side
    161,686,845.60x = 20,643,752,268,470,244
  5. Step 5: Solve for x
    x = 20,643,752,268,470,244/161,686,845.60
  6. Step 6: Final answer
    x = 127,677,376.55

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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.