Home / 398,830,799.52-550,478,337.12-233,871,513.12

Finding the Fourth Proportional to 398,830,799.52, 550,478,337.12 and 233,871,513.12

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Solution

The fourth proportional to 398,830,799.52, 550,478,337.12 and 233,871,513.12 is: 322,796,538.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,830,799.52 : 550,478,337.12 = 233,871,513.12 : x
  2. Step 2: Convert to fraction form
    398,830,799.52/550,478,337.12 = 233,871,513.12/x
  3. Step 3: Cross multiply
    398,830,799.52x = 550,478,337.12 × 233,871,513.12
  4. Step 4: Simplify right side
    398,830,799.52x = 128,741,201,642,035,872
  5. Step 5: Solve for x
    x = 128,741,201,642,035,872/398,830,799.52
  6. Step 6: Final answer
    x = 322,796,538.78

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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.