Home / 521,461,009,468.25-782,280,626,670.80-214,983,253,182.52

Finding the Fourth Proportional to 521,461,009,468.25, 782,280,626,670.80 and 214,983,253,182.52

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Solution

The fourth proportional to 521,461,009,468.25, 782,280,626,670.80 and 214,983,253,182.52 is: 322,511,618,260.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,461,009,468.25 : 782,280,626,670.80 = 214,983,253,182.52 : x
  2. Step 2: Convert to fraction form
    521,461,009,468.25/782,280,626,670.80 = 214,983,253,182.52/x
  3. Step 3: Cross multiply
    521,461,009,468.25x = 782,280,626,670.80 × 214,983,253,182.52
  4. Step 4: Simplify right side
    521,461,009,468.25x = 168,177,234,023,349,009,514,496
  5. Step 5: Solve for x
    x = 168,177,234,023,349,009,514,496/521,461,009,468.25
  6. Step 6: Final answer
    x = 322,511,618,260.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.