Home / 218,723,145.60-328,084,718.40-202,094,947.20

Finding the Fourth Proportional to 218,723,145.60, 328,084,718.40 and 202,094,947.20

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Solution

The fourth proportional to 218,723,145.60, 328,084,718.40 and 202,094,947.20 is: 303,142,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,723,145.60 : 328,084,718.40 = 202,094,947.20 : x
  2. Step 2: Convert to fraction form
    218,723,145.60/328,084,718.40 = 202,094,947.20/x
  3. Step 3: Cross multiply
    218,723,145.60x = 328,084,718.40 × 202,094,947.20
  4. Step 4: Simplify right side
    218,723,145.60x = 66,304,263,842,174,856
  5. Step 5: Solve for x
    x = 66,304,263,842,174,856/218,723,145.60
  6. Step 6: Final answer
    x = 303,142,420.80

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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.