Home / 68,852,838.56-103,292,887.77-19,669,116.38

Finding the Fourth Proportional to 68,852,838.56, 103,292,887.77 and 19,669,116.38

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Solution

The fourth proportional to 68,852,838.56, 103,292,887.77 and 19,669,116.38 is: 29,507,568.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,852,838.56 : 103,292,887.77 = 19,669,116.38 : x
  2. Step 2: Convert to fraction form
    68,852,838.56/103,292,887.77 = 19,669,116.38/x
  3. Step 3: Cross multiply
    68,852,838.56x = 103,292,887.77 × 19,669,116.38
  4. Step 4: Simplify right side
    68,852,838.56x = 2,031,679,830,257,944.25
  5. Step 5: Solve for x
    x = 2,031,679,830,257,944.25/68,852,838.56
  6. Step 6: Final answer
    x = 29,507,568.21

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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.