Home / 139,968,004.70-209,952,007.05-126,531,076.70

Finding the Fourth Proportional to 139,968,004.70, 209,952,007.05 and 126,531,076.70

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Solution

The fourth proportional to 139,968,004.70, 209,952,007.05 and 126,531,076.70 is: 189,796,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,004.70 : 209,952,007.05 = 126,531,076.70 : x
  2. Step 2: Convert to fraction form
    139,968,004.70/209,952,007.05 = 126,531,076.70/x
  3. Step 3: Cross multiply
    139,968,004.70x = 209,952,007.05 × 126,531,076.70
  4. Step 4: Simplify right side
    139,968,004.70x = 26,565,453,507,362,492
  5. Step 5: Solve for x
    x = 26,565,453,507,362,492/139,968,004.70
  6. Step 6: Final answer
    x = 189,796,615.05

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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.