Home / 308,687,213.16-425,399,642.27-303,013,416.18

Finding the Fourth Proportional to 308,687,213.16, 425,399,642.27 and 303,013,416.18

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Solution

The fourth proportional to 308,687,213.16, 425,399,642.27 and 303,013,416.18 is: 417,580,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,687,213.16 : 425,399,642.27 = 303,013,416.18 : x
  2. Step 2: Convert to fraction form
    308,687,213.16/425,399,642.27 = 303,013,416.18/x
  3. Step 3: Cross multiply
    308,687,213.16x = 425,399,642.27 × 303,013,416.18
  4. Step 4: Simplify right side
    308,687,213.16x = 128,901,798,844,467,568
  5. Step 5: Solve for x
    x = 128,901,798,844,467,568/308,687,213.16
  6. Step 6: Final answer
    x = 417,580,623.20

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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.