Home / 131,293,987.09-196,764,941.71-102,182,978.32

Finding the Fourth Proportional to 131,293,987.09, 196,764,941.71 and 102,182,978.32

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Solution

The fourth proportional to 131,293,987.09, 196,764,941.71 and 102,182,978.32 is: 153,137,460.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,293,987.09 : 196,764,941.71 = 102,182,978.32 : x
  2. Step 2: Convert to fraction form
    131,293,987.09/196,764,941.71 = 102,182,978.32/x
  3. Step 3: Cross multiply
    131,293,987.09x = 196,764,941.71 × 102,182,978.32
  4. Step 4: Simplify right side
    131,293,987.09x = 20,106,027,772,888,992
  5. Step 5: Solve for x
    x = 20,106,027,772,888,992/131,293,987.09
  6. Step 6: Final answer
    x = 153,137,460.58

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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.