Home / 139,969,272.30-209,953,908.45-133,591,980.30

Finding the Fourth Proportional to 139,969,272.30, 209,953,908.45 and 133,591,980.30

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Solution

The fourth proportional to 139,969,272.30, 209,953,908.45 and 133,591,980.30 is: 200,387,970.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,272.30 : 209,953,908.45 = 133,591,980.30 : x
  2. Step 2: Convert to fraction form
    139,969,272.30/209,953,908.45 = 133,591,980.30/x
  3. Step 3: Cross multiply
    139,969,272.30x = 209,953,908.45 × 133,591,980.30
  4. Step 4: Simplify right side
    139,969,272.30x = 28,048,158,401,560,400
  5. Step 5: Solve for x
    x = 28,048,158,401,560,400/139,969,272.30
  6. Step 6: Final answer
    x = 200,387,970.45

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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.