Home / 137,907,490,978.14-190,317,033,280.96-80,031,389,827.24

Finding the Fourth Proportional to 137,907,490,978.14, 190,317,033,280.96 and 80,031,389,827.24

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Solution

The fourth proportional to 137,907,490,978.14, 190,317,033,280.96 and 80,031,389,827.24 is: 110,446,043,019.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,907,490,978.14 : 190,317,033,280.96 = 80,031,389,827.24 : x
  2. Step 2: Convert to fraction form
    137,907,490,978.14/190,317,033,280.96 = 80,031,389,827.24/x
  3. Step 3: Cross multiply
    137,907,490,978.14x = 190,317,033,280.96 × 80,031,389,827.24
  4. Step 4: Simplify right side
    137,907,490,978.14x = 15,231,336,681,272,319,672,320
  5. Step 5: Solve for x
    x = 15,231,336,681,272,319,672,320/137,907,490,978.14
  6. Step 6: Final answer
    x = 110,446,043,019.42

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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.