Home / 380,265,791.68-524,769,874.14-210,722,861.53

Finding the Fourth Proportional to 380,265,791.68, 524,769,874.14 and 210,722,861.53

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Solution

The fourth proportional to 380,265,791.68, 524,769,874.14 and 210,722,861.53 is: 290,799,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,265,791.68 : 524,769,874.14 = 210,722,861.53 : x
  2. Step 2: Convert to fraction form
    380,265,791.68/524,769,874.14 = 210,722,861.53/x
  3. Step 3: Cross multiply
    380,265,791.68x = 524,769,874.14 × 210,722,861.53
  4. Step 4: Simplify right side
    380,265,791.68x = 110,581,009,523,518,752
  5. Step 5: Solve for x
    x = 110,581,009,523,518,752/380,265,791.68
  6. Step 6: Final answer
    x = 290,799,256.58

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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.