Home / 387,171,636.39-534,290,131.04-210,961,079.70

Finding the Fourth Proportional to 387,171,636.39, 534,290,131.04 and 210,961,079.70

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Solution

The fourth proportional to 387,171,636.39, 534,290,131.04 and 210,961,079.70 is: 291,122,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,171,636.39 : 534,290,131.04 = 210,961,079.70 : x
  2. Step 2: Convert to fraction form
    387,171,636.39/534,290,131.04 = 210,961,079.70/x
  3. Step 3: Cross multiply
    387,171,636.39x = 534,290,131.04 × 210,961,079.70
  4. Step 4: Simplify right side
    387,171,636.39x = 112,714,422,916,198,080
  5. Step 5: Solve for x
    x = 112,714,422,916,198,080/387,171,636.39
  6. Step 6: Final answer
    x = 291,122,624.50

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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.