Home / 143,759,057.09-215,561,866.32-74,602,229.67

Finding the Fourth Proportional to 143,759,057.09, 215,561,866.32 and 74,602,229.67

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Solution

The fourth proportional to 143,759,057.09, 215,561,866.32 and 74,602,229.67 is: 111,863,531.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,759,057.09 : 215,561,866.32 = 74,602,229.67 : x
  2. Step 2: Convert to fraction form
    143,759,057.09/215,561,866.32 = 74,602,229.67/x
  3. Step 3: Cross multiply
    143,759,057.09x = 215,561,866.32 × 74,602,229.67
  4. Step 4: Simplify right side
    143,759,057.09x = 16,081,395,859,298,478
  5. Step 5: Solve for x
    x = 16,081,395,859,298,478/143,759,057.09
  6. Step 6: Final answer
    x = 111,863,531.84

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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.