Home / 139,968,120.05-209,952,180.08-103,688,414.45

Finding the Fourth Proportional to 139,968,120.05, 209,952,180.08 and 103,688,414.45

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Solution

The fourth proportional to 139,968,120.05, 209,952,180.08 and 103,688,414.45 is: 155,532,621.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,120.05 : 209,952,180.08 = 103,688,414.45 : x
  2. Step 2: Convert to fraction form
    139,968,120.05/209,952,180.08 = 103,688,414.45/x
  3. Step 3: Cross multiply
    139,968,120.05x = 209,952,180.08 × 103,688,414.45
  4. Step 4: Simplify right side
    139,968,120.05x = 21,769,608,662,816,076
  5. Step 5: Solve for x
    x = 21,769,608,662,816,076/139,968,120.05
  6. Step 6: Final answer
    x = 155,532,621.68

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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.