Home / 68,852,850.57-103,292,905.77-19,669,128.39

Finding the Fourth Proportional to 68,852,850.57, 103,292,905.77 and 19,669,128.39

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Solution

The fourth proportional to 68,852,850.57, 103,292,905.77 and 19,669,128.39 is: 29,507,586.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852,850.57 : 103,292,905.77 = 19,669,128.39 : x
  2. Step 2: Convert to fraction form
    68,852,850.57/103,292,905.77 = 19,669,128.39/x
  3. Step 3: Cross multiply
    68,852,850.57x = 103,292,905.77 × 19,669,128.39
  4. Step 4: Simplify right side
    68,852,850.57x = 2,031,681,425,366,301.75
  5. Step 5: Solve for x
    x = 2,031,681,425,366,301.75/68,852,850.57
  6. Step 6: Final answer
    x = 29,507,586.23

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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.