Home / 30,945,431.63-42,705,719.51-17,007,280.80

Finding the Fourth Proportional to 30,945,431.63, 42,705,719.51 and 17,007,280.80

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Solution

The fourth proportional to 30,945,431.63, 42,705,719.51 and 17,007,280.80 is: 23,470,610.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,945,431.63 : 42,705,719.51 = 17,007,280.80 : x
  2. Step 2: Convert to fraction form
    30,945,431.63/42,705,719.51 = 17,007,280.80/x
  3. Step 3: Cross multiply
    30,945,431.63x = 42,705,719.51 × 17,007,280.80
  4. Step 4: Simplify right side
    30,945,431.63x = 726,308,163,227,425.62
  5. Step 5: Solve for x
    x = 726,308,163,227,425.62/30,945,431.63
  6. Step 6: Final answer
    x = 23,470,610.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.