Home / 641,428,135.11-885,170,826.45-348,072,703.11

Finding the Fourth Proportional to 641,428,135.11, 885,170,826.45 and 348,072,703.11

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Solution

The fourth proportional to 641,428,135.11, 885,170,826.45 and 348,072,703.11 is: 480,340,330.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,428,135.11 : 885,170,826.45 = 348,072,703.11 : x
  2. Step 2: Convert to fraction form
    641,428,135.11/885,170,826.45 = 348,072,703.11/x
  3. Step 3: Cross multiply
    641,428,135.11x = 885,170,826.45 × 348,072,703.11
  4. Step 4: Simplify right side
    641,428,135.11x = 308,103,802,276,564,224
  5. Step 5: Solve for x
    x = 308,103,802,276,564,224/641,428,135.11
  6. Step 6: Final answer
    x = 480,340,330.29

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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.