Home / 280,188,638,543.52-386,660,694,067.07-151,730,308,699.95

Finding the Fourth Proportional to 280,188,638,543.52, 386,660,694,067.07 and 151,730,308,699.95

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Solution

The fourth proportional to 280,188,638,543.52, 386,660,694,067.07 and 151,730,308,699.95 is: 209,388,027,929.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,188,638,543.52 : 386,660,694,067.07 = 151,730,308,699.95 : x
  2. Step 2: Convert to fraction form
    280,188,638,543.52/386,660,694,067.07 = 151,730,308,699.95/x
  3. Step 3: Cross multiply
    280,188,638,543.52x = 386,660,694,067.07 × 151,730,308,699.95
  4. Step 4: Simplify right side
    280,188,638,543.52x = 58,668,146,472,933,463,687,168
  5. Step 5: Solve for x
    x = 58,668,146,472,933,463,687,168/280,188,638,543.52
  6. Step 6: Final answer
    x = 209,388,027,929.69

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1.5x scale

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.