Home / 445,072,779.66-667,472,530.50-307,780,643.88

Finding the Fourth Proportional to 445,072,779.66, 667,472,530.50 and 307,780,643.88

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Solution

The fourth proportional to 445,072,779.66, 667,472,530.50 and 307,780,643.88 is: 461,576,476.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,072,779.66 : 667,472,530.50 = 307,780,643.88 : x
  2. Step 2: Convert to fraction form
    445,072,779.66/667,472,530.50 = 307,780,643.88/x
  3. Step 3: Cross multiply
    445,072,779.66x = 667,472,530.50 × 307,780,643.88
  4. Step 4: Simplify right side
    445,072,779.66x = 205,435,125,209,502,944
  5. Step 5: Solve for x
    x = 205,435,125,209,502,944/445,072,779.66
  6. Step 6: Final answer
    x = 461,576,476.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.