Home / 428,935,641.20-591,223,794.45-303,325,821.08

Finding the Fourth Proportional to 428,935,641.20, 591,223,794.45 and 303,325,821.08

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Solution

The fourth proportional to 428,935,641.20, 591,223,794.45 and 303,325,821.08 is: 418,089,395.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,935,641.20 : 591,223,794.45 = 303,325,821.08 : x
  2. Step 2: Convert to fraction form
    428,935,641.20/591,223,794.45 = 303,325,821.08/x
  3. Step 3: Cross multiply
    428,935,641.20x = 591,223,794.45 × 303,325,821.08
  4. Step 4: Simplify right side
    428,935,641.20x = 179,333,442,893,579,392
  5. Step 5: Solve for x
    x = 179,333,442,893,579,392/428,935,641.20
  6. Step 6: Final answer
    x = 418,089,395.40

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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.