Home / 652,480,443.38-900,422,961.71-355,124,817.65

Finding the Fourth Proportional to 652,480,443.38, 900,422,961.71 and 355,124,817.65

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Solution

The fourth proportional to 652,480,443.38, 900,422,961.71 and 355,124,817.65 is: 490,072,221.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,480,443.38 : 900,422,961.71 = 355,124,817.65 : x
  2. Step 2: Convert to fraction form
    652,480,443.38/900,422,961.71 = 355,124,817.65/x
  3. Step 3: Cross multiply
    652,480,443.38x = 900,422,961.71 × 355,124,817.65
  4. Step 4: Simplify right side
    652,480,443.38x = 319,762,540,078,858,944
  5. Step 5: Solve for x
    x = 319,762,540,078,858,944/652,480,443.38
  6. Step 6: Final answer
    x = 490,072,221.05

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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.