Home / 374,112,820.80-561,169,231.20-212,869,684.80

Finding the Fourth Proportional to 374,112,820.80, 561,169,231.20 and 212,869,684.80

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Solution

The fourth proportional to 374,112,820.80, 561,169,231.20 and 212,869,684.80 is: 319,304,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,112,820.80 : 561,169,231.20 = 212,869,684.80 : x
  2. Step 2: Convert to fraction form
    374,112,820.80/561,169,231.20 = 212,869,684.80/x
  3. Step 3: Cross multiply
    374,112,820.80x = 561,169,231.20 × 212,869,684.80
  4. Step 4: Simplify right side
    374,112,820.80x = 119,455,917,365,002,336
  5. Step 5: Solve for x
    x = 119,455,917,365,002,336/374,112,820.80
  6. Step 6: Final answer
    x = 319,304,527.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.