Home / 387,970,778.52-536,100,019.98-276,267,690.36

Finding the Fourth Proportional to 387,970,778.52, 536,100,019.98 and 276,267,690.36

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Solution

The fourth proportional to 387,970,778.52, 536,100,019.98 and 276,267,690.36 is: 381,748,117.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,970,778.52 : 536,100,019.98 = 276,267,690.36 : x
  2. Step 2: Convert to fraction form
    387,970,778.52/536,100,019.98 = 276,267,690.36/x
  3. Step 3: Cross multiply
    387,970,778.52x = 536,100,019.98 × 276,267,690.36
  4. Step 4: Simplify right side
    387,970,778.52x = 148,107,114,321,824,480
  5. Step 5: Solve for x
    x = 148,107,114,321,824,480/387,970,778.52
  6. Step 6: Final answer
    x = 381,748,117.44

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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.