Home / 353,256,910.23-487,411,145.37-296,955,711.72

Finding the Fourth Proportional to 353,256,910.23, 487,411,145.37 and 296,955,711.72

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Solution

The fourth proportional to 353,256,910.23, 487,411,145.37 and 296,955,711.72 is: 409,728,782.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,256,910.23 : 487,411,145.37 = 296,955,711.72 : x
  2. Step 2: Convert to fraction form
    353,256,910.23/487,411,145.37 = 296,955,711.72/x
  3. Step 3: Cross multiply
    353,256,910.23x = 487,411,145.37 × 296,955,711.72
  4. Step 4: Simplify right side
    353,256,910.23x = 144,739,523,573,608,736
  5. Step 5: Solve for x
    x = 144,739,523,573,608,736/353,256,910.23
  6. Step 6: Final answer
    x = 409,728,782.03

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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.