Home / 468,461,828.35-645,670,398.85-311,548,558.69

Finding the Fourth Proportional to 468,461,828.35, 645,670,398.85 and 311,548,558.69

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Solution

The fourth proportional to 468,461,828.35, 645,670,398.85 and 311,548,558.69 is: 429,400,369.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,461,828.35 : 645,670,398.85 = 311,548,558.69 : x
  2. Step 2: Convert to fraction form
    468,461,828.35/645,670,398.85 = 311,548,558.69/x
  3. Step 3: Cross multiply
    468,461,828.35x = 645,670,398.85 × 311,548,558.69
  4. Step 4: Simplify right side
    468,461,828.35x = 201,157,682,150,514,944
  5. Step 5: Solve for x
    x = 201,157,682,150,514,944/468,461,828.35
  6. Step 6: Final answer
    x = 429,400,369.42

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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.