Home / 641,429,057.52-885,172,100.40-348,073,625.52

Finding the Fourth Proportional to 641,429,057.52, 885,172,100.40 and 348,073,625.52

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Solution

The fourth proportional to 641,429,057.52, 885,172,100.40 and 348,073,625.52 is: 480,341,603.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,429,057.52 : 885,172,100.40 = 348,073,625.52 : x
  2. Step 2: Convert to fraction form
    641,429,057.52/885,172,100.40 = 348,073,625.52/x
  3. Step 3: Cross multiply
    641,429,057.52x = 885,172,100.40 × 348,073,625.52
  4. Step 4: Simplify right side
    641,429,057.52x = 308,105,062,195,381,440
  5. Step 5: Solve for x
    x = 308,105,062,195,381,440/641,429,057.52
  6. Step 6: Final answer
    x = 480,341,603.77

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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.