Home / 521,540,180.34-719,731,177.32-286,590,901.56

Finding the Fourth Proportional to 521,540,180.34, 719,731,177.32 and 286,590,901.56

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Solution

The fourth proportional to 521,540,180.34, 719,731,177.32 and 286,590,901.56 is: 395,498,591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,540,180.34 : 719,731,177.32 = 286,590,901.56 : x
  2. Step 2: Convert to fraction form
    521,540,180.34/719,731,177.32 = 286,590,901.56/x
  3. Step 3: Cross multiply
    521,540,180.34x = 719,731,177.32 × 286,590,901.56
  4. Step 4: Simplify right side
    521,540,180.34x = 206,268,406,988,979,040
  5. Step 5: Solve for x
    x = 206,268,406,988,979,040/521,540,180.34
  6. Step 6: Final answer
    x = 395,498,591.99

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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.