Home / 85,407,841.19-128,085,268.96-30,813,329.29

Finding the Fourth Proportional to 85,407,841.19, 128,085,268.96 and 30,813,329.29

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Solution

The fourth proportional to 85,407,841.19, 128,085,268.96 and 30,813,329.29 is: 46,210,435.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,407,841.19 : 128,085,268.96 = 30,813,329.29 : x
  2. Step 2: Convert to fraction form
    85,407,841.19/128,085,268.96 = 30,813,329.29/x
  3. Step 3: Cross multiply
    85,407,841.19x = 128,085,268.96 × 30,813,329.29
  4. Step 4: Simplify right side
    85,407,841.19x = 3,946,733,568,868,203
  5. Step 5: Solve for x
    x = 3,946,733,568,868,203/85,407,841.19
  6. Step 6: Final answer
    x = 46,210,435.88

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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.