Home / 139,968,019.80-209,952,029.70-127,202,938.20

Finding the Fourth Proportional to 139,968,019.80, 209,952,029.70 and 127,202,938.20

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Solution

The fourth proportional to 139,968,019.80, 209,952,029.70 and 127,202,938.20 is: 190,804,407.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,019.80 : 209,952,029.70 = 127,202,938.20 : x
  2. Step 2: Convert to fraction form
    139,968,019.80/209,952,029.70 = 127,202,938.20/x
  3. Step 3: Cross multiply
    139,968,019.80x = 209,952,029.70 × 127,202,938.20
  4. Step 4: Simplify right side
    139,968,019.80x = 26,706,515,058,893,664
  5. Step 5: Solve for x
    x = 26,706,515,058,893,664/139,968,019.80
  6. Step 6: Final answer
    x = 190,804,407.30

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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.