Home / 143,638,584.75-198,222,505.74-81,762,901.83

Finding the Fourth Proportional to 143,638,584.75, 198,222,505.74 and 81,762,901.83

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Solution

The fourth proportional to 143,638,584.75, 198,222,505.74 and 81,762,901.83 is: 112,833,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,638,584.75 : 198,222,505.74 = 81,762,901.83 : x
  2. Step 2: Convert to fraction form
    143,638,584.75/198,222,505.74 = 81,762,901.83/x
  3. Step 3: Cross multiply
    143,638,584.75x = 198,222,505.74 × 81,762,901.83
  4. Step 4: Simplify right side
    143,638,584.75x = 16,207,247,277,316,232
  5. Step 5: Solve for x
    x = 16,207,247,277,316,232/143,638,584.75
  6. Step 6: Final answer
    x = 112,833,521.06

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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.