Home / 831,619,758.40-1,147,451,793.36-492,359,775.45

Finding the Fourth Proportional to 831,619,758.40, 1,147,451,793.36 and 492,359,775.45

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Solution

The fourth proportional to 831,619,758.40, 1,147,451,793.36 and 492,359,775.45 is: 679,347,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,619,758.40 : 1,147,451,793.36 = 492,359,775.45 : x
  2. Step 2: Convert to fraction form
    831,619,758.40/1,147,451,793.36 = 492,359,775.45/x
  3. Step 3: Cross multiply
    831,619,758.40x = 1,147,451,793.36 × 492,359,775.45
  4. Step 4: Simplify right side
    831,619,758.40x = 564,959,107,312,255,488
  5. Step 5: Solve for x
    x = 564,959,107,312,255,488/831,619,758.40
  6. Step 6: Final answer
    x = 679,347,864.94

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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.