Home / 139,968,140.20-209,952,210.30-127,213,556.20

Finding the Fourth Proportional to 139,968,140.20, 209,952,210.30 and 127,213,556.20

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Solution

The fourth proportional to 139,968,140.20, 209,952,210.30 and 127,213,556.20 is: 190,820,334.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,140.20 : 209,952,210.30 = 127,213,556.20 : x
  2. Step 2: Convert to fraction form
    139,968,140.20/209,952,210.30 = 127,213,556.20/x
  3. Step 3: Cross multiply
    139,968,140.20x = 209,952,210.30 × 127,213,556.20
  4. Step 4: Simplify right side
    139,968,140.20x = 26,708,767,304,313,272
  5. Step 5: Solve for x
    x = 26,708,767,304,313,272/139,968,140.20
  6. Step 6: Final answer
    x = 190,820,334.30

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1.5x scale

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.