Home / 635,346,386.34-876,506,040.42-396,777,394.50

Finding the Fourth Proportional to 635,346,386.34, 876,506,040.42 and 396,777,394.50

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Solution

The fourth proportional to 635,346,386.34, 876,506,040.42 and 396,777,394.50 is: 547,382,955.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,346,386.34 : 876,506,040.42 = 396,777,394.50 : x
  2. Step 2: Convert to fraction form
    635,346,386.34/876,506,040.42 = 396,777,394.50/x
  3. Step 3: Cross multiply
    635,346,386.34x = 876,506,040.42 × 396,777,394.50
  4. Step 4: Simplify right side
    635,346,386.34x = 347,777,782,981,359,296
  5. Step 5: Solve for x
    x = 347,777,782,981,359,296/635,346,386.34
  6. Step 6: Final answer
    x = 547,382,955.91

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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.