Home / 468,461,832.36-645,670,404.38-311,548,562.68

Finding the Fourth Proportional to 468,461,832.36, 645,670,404.38 and 311,548,562.68

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Solution

The fourth proportional to 468,461,832.36, 645,670,404.38 and 311,548,562.68 is: 429,400,374.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,461,832.36 : 645,670,404.38 = 311,548,562.68 : x
  2. Step 2: Convert to fraction form
    468,461,832.36/645,670,404.38 = 311,548,562.68/x
  3. Step 3: Cross multiply
    468,461,832.36x = 645,670,404.38 × 311,548,562.68
  4. Step 4: Simplify right side
    468,461,832.36x = 201,157,686,449,603,392
  5. Step 5: Solve for x
    x = 201,157,686,449,603,392/468,461,832.36
  6. Step 6: Final answer
    x = 429,400,374.92

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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.