Home / 640,446,717.27-960,481,618.47-290,490,325.59

Finding the Fourth Proportional to 640,446,717.27, 960,481,618.47 and 290,490,325.59

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Solution

The fourth proportional to 640,446,717.27, 960,481,618.47 and 290,490,325.59 is: 435,650,008.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,446,717.27 : 960,481,618.47 = 290,490,325.59 : x
  2. Step 2: Convert to fraction form
    640,446,717.27/960,481,618.47 = 290,490,325.59/x
  3. Step 3: Cross multiply
    640,446,717.27x = 960,481,618.47 × 290,490,325.59
  4. Step 4: Simplify right side
    640,446,717.27x = 279,010,618,072,560,448
  5. Step 5: Solve for x
    x = 279,010,618,072,560,448/640,446,717.27
  6. Step 6: Final answer
    x = 435,650,008.89

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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.