Home / 929,134,417.68-1,394,670,142.48-411,928,076.88

Finding the Fourth Proportional to 929,134,417.68, 1,394,670,142.48 and 411,928,076.88

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Solution

The fourth proportional to 929,134,417.68, 1,394,670,142.48 and 411,928,076.88 is: 618,321,503.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,134,417.68 : 1,394,670,142.48 = 411,928,076.88 : x
  2. Step 2: Convert to fraction form
    929,134,417.68/1,394,670,142.48 = 411,928,076.88/x
  3. Step 3: Cross multiply
    929,134,417.68x = 1,394,670,142.48 × 411,928,076.88
  4. Step 4: Simplify right side
    929,134,417.68x = 574,503,789,673,742,016
  5. Step 5: Solve for x
    x = 574,503,789,673,742,016/929,134,417.68
  6. Step 6: Final answer
    x = 618,321,503.05

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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.