Home / 210,348,971.80-316,959,242.62-172,850,494.84

Finding the Fourth Proportional to 210,348,971.80, 316,959,242.62 and 172,850,494.84

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Solution

The fourth proportional to 210,348,971.80, 316,959,242.62 and 172,850,494.84 is: 260,455,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,348,971.80 : 316,959,242.62 = 172,850,494.84 : x
  2. Step 2: Convert to fraction form
    210,348,971.80/316,959,242.62 = 172,850,494.84/x
  3. Step 3: Cross multiply
    210,348,971.80x = 316,959,242.62 × 172,850,494.84
  4. Step 4: Simplify right side
    210,348,971.80x = 54,786,561,930,978,624
  5. Step 5: Solve for x
    x = 54,786,561,930,978,624/210,348,971.80
  6. Step 6: Final answer
    x = 260,455,572.77

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.