Home / 139,968,240.70-209,952,361.05-139,117,935.10

Finding the Fourth Proportional to 139,968,240.70, 209,952,361.05 and 139,117,935.10

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Solution

The fourth proportional to 139,968,240.70, 209,952,361.05 and 139,117,935.10 is: 208,676,902.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,240.70 : 209,952,361.05 = 139,117,935.10 : x
  2. Step 2: Convert to fraction form
    139,968,240.70/209,952,361.05 = 139,117,935.10/x
  3. Step 3: Cross multiply
    139,968,240.70x = 209,952,361.05 × 139,117,935.10
  4. Step 4: Simplify right side
    139,968,240.70x = 29,208,138,938,645,668
  5. Step 5: Solve for x
    x = 29,208,138,938,645,668/139,968,240.70
  6. Step 6: Final answer
    x = 208,676,902.65

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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.