Home / 264,958,308.49-397,480,634.45-78,231,126.71

Finding the Fourth Proportional to 264,958,308.49, 397,480,634.45 and 78,231,126.71

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Solution

The fourth proportional to 264,958,308.49, 397,480,634.45 and 78,231,126.71 is: 117,359,436.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,958,308.49 : 397,480,634.45 = 78,231,126.71 : x
  2. Step 2: Convert to fraction form
    264,958,308.49/397,480,634.45 = 78,231,126.71/x
  3. Step 3: Cross multiply
    264,958,308.49x = 397,480,634.45 × 78,231,126.71
  4. Step 4: Simplify right side
    264,958,308.49x = 31,095,357,878,429,136
  5. Step 5: Solve for x
    x = 31,095,357,878,429,136/264,958,308.49
  6. Step 6: Final answer
    x = 117,359,436.87

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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.