Home / 387,180,809.88-534,303,173.34-210,970,895.64

Finding the Fourth Proportional to 387,180,809.88, 534,303,173.34 and 210,970,895.64

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Solution

The fourth proportional to 387,180,809.88, 534,303,173.34 and 210,970,895.64 is: 291,136,379.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,180,809.88 : 534,303,173.34 = 210,970,895.64 : x
  2. Step 2: Convert to fraction form
    387,180,809.88/534,303,173.34 = 210,970,895.64/x
  3. Step 3: Cross multiply
    387,180,809.88x = 534,303,173.34 × 210,970,895.64
  4. Step 4: Simplify right side
    387,180,809.88x = 112,722,419,022,833,952
  5. Step 5: Solve for x
    x = 112,722,419,022,833,952/387,180,809.88
  6. Step 6: Final answer
    x = 291,136,379.04

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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.