Home / 54,128,338.80-74,692,488.60-30,605,722.80

Finding the Fourth Proportional to 54,128,338.80, 74,692,488.60 and 30,605,722.80

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Solution

The fourth proportional to 54,128,338.80, 74,692,488.60 and 30,605,722.80 is: 42,233,285.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,128,338.80 : 74,692,488.60 = 30,605,722.80 : x
  2. Step 2: Convert to fraction form
    54,128,338.80/74,692,488.60 = 30,605,722.80/x
  3. Step 3: Cross multiply
    54,128,338.80x = 74,692,488.60 × 30,605,722.80
  4. Step 4: Simplify right side
    54,128,338.80x = 2,286,017,601,333,760
  5. Step 5: Solve for x
    x = 2,286,017,601,333,760/54,128,338.80
  6. Step 6: Final answer
    x = 42,233,285.78

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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.