Home / 147,191,278.36-203,125,307.31-81,114,147.31

Finding the Fourth Proportional to 147,191,278.36, 203,125,307.31 and 81,114,147.31

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Solution

The fourth proportional to 147,191,278.36, 203,125,307.31 and 81,114,147.31 is: 111,938,263.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,191,278.36 : 203,125,307.31 = 81,114,147.31 : x
  2. Step 2: Convert to fraction form
    147,191,278.36/203,125,307.31 = 81,114,147.31/x
  3. Step 3: Cross multiply
    147,191,278.36x = 203,125,307.31 × 81,114,147.31
  4. Step 4: Simplify right side
    147,191,278.36x = 16,476,336,099,532,360
  5. Step 5: Solve for x
    x = 16,476,336,099,532,360/147,191,278.36
  6. Step 6: Final answer
    x = 111,938,263.48

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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.