Home / 420,785,931.66-580,685,373.81-235,146,947.37

Finding the Fourth Proportional to 420,785,931.66, 580,685,373.81 and 235,146,947.37

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Solution

The fourth proportional to 420,785,931.66, 580,685,373.81 and 235,146,947.37 is: 324,503,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,785,931.66 : 580,685,373.81 = 235,146,947.37 : x
  2. Step 2: Convert to fraction form
    420,785,931.66/580,685,373.81 = 235,146,947.37/x
  3. Step 3: Cross multiply
    420,785,931.66x = 580,685,373.81 × 235,146,947.37
  4. Step 4: Simplify right side
    420,785,931.66x = 136,546,393,033,828,832
  5. Step 5: Solve for x
    x = 136,546,393,033,828,832/420,785,931.66
  6. Step 6: Final answer
    x = 324,503,227.79

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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.