Home / 641,428,135.61-885,170,827.14-348,072,703.61

Finding the Fourth Proportional to 641,428,135.61, 885,170,827.14 and 348,072,703.61

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Solution

The fourth proportional to 641,428,135.61, 885,170,827.14 and 348,072,703.61 is: 480,340,330.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,428,135.61 : 885,170,827.14 = 348,072,703.61 : x
  2. Step 2: Convert to fraction form
    641,428,135.61/885,170,827.14 = 348,072,703.61/x
  3. Step 3: Cross multiply
    641,428,135.61x = 885,170,827.14 × 348,072,703.61
  4. Step 4: Simplify right side
    641,428,135.61x = 308,103,802,959,319,744
  5. Step 5: Solve for x
    x = 308,103,802,959,319,744/641,428,135.61
  6. Step 6: Final answer
    x = 480,340,330.98

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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.