Home / 142,372,947.44-196,476,213.90-83,638,088.12

Finding the Fourth Proportional to 142,372,947.44, 196,476,213.90 and 83,638,088.12

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Solution

The fourth proportional to 142,372,947.44, 196,476,213.90 and 83,638,088.12 is: 115,421,470.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,372,947.44 : 196,476,213.90 = 83,638,088.12 : x
  2. Step 2: Convert to fraction form
    142,372,947.44/196,476,213.90 = 83,638,088.12/x
  3. Step 3: Cross multiply
    142,372,947.44x = 196,476,213.90 × 83,638,088.12
  4. Step 4: Simplify right side
    142,372,947.44x = 16,432,894,891,652,170
  5. Step 5: Solve for x
    x = 16,432,894,891,652,170/142,372,947.44
  6. Step 6: Final answer
    x = 115,421,470.07

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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.