Home / 138,219,118.70-190,741,127.99-75,495,203.57

Finding the Fourth Proportional to 138,219,118.70, 190,741,127.99 and 75,495,203.57

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Solution

The fourth proportional to 138,219,118.70, 190,741,127.99 and 75,495,203.57 is: 104,182,694.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,219,118.70 : 190,741,127.99 = 75,495,203.57 : x
  2. Step 2: Convert to fraction form
    138,219,118.70/190,741,127.99 = 75,495,203.57/x
  3. Step 3: Cross multiply
    138,219,118.70x = 190,741,127.99 × 75,495,203.57
  4. Step 4: Simplify right side
    138,219,118.70x = 14,400,040,285,445,294
  5. Step 5: Solve for x
    x = 14,400,040,285,445,294/138,219,118.70
  6. Step 6: Final answer
    x = 104,182,694.99

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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.