Home / 652,478,780.88-900,428,078.04-355,122,926.76

Finding the Fourth Proportional to 652,478,780.88, 900,428,078.04 and 355,122,926.76

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Solution

The fourth proportional to 652,478,780.88, 900,428,078.04 and 355,122,926.76 is: 490,073,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,478,780.88 : 900,428,078.04 = 355,122,926.76 : x
  2. Step 2: Convert to fraction form
    652,478,780.88/900,428,078.04 = 355,122,926.76/x
  3. Step 3: Cross multiply
    652,478,780.88x = 900,428,078.04 × 355,122,926.76
  4. Step 4: Simplify right side
    652,478,780.88x = 319,762,654,410,446,464
  5. Step 5: Solve for x
    x = 319,762,654,410,446,464/652,478,780.88
  6. Step 6: Final answer
    x = 490,073,644.97

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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.