Home / 826,595,438.52-1,140,701,766.75-455,317,469.91

Finding the Fourth Proportional to 826,595,438.52, 1,140,701,766.75 and 455,317,469.91

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Solution

The fourth proportional to 826,595,438.52, 1,140,701,766.75 and 455,317,469.91 is: 628,338,142.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,595,438.52 : 1,140,701,766.75 = 455,317,469.91 : x
  2. Step 2: Convert to fraction form
    826,595,438.52/1,140,701,766.75 = 455,317,469.91/x
  3. Step 3: Cross multiply
    826,595,438.52x = 1,140,701,766.75 × 455,317,469.91
  4. Step 4: Simplify right side
    826,595,438.52x = 519,381,442,358,476,992
  5. Step 5: Solve for x
    x = 519,381,442,358,476,992/826,595,438.52
  6. Step 6: Final answer
    x = 628,338,142.40

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1.5x scale

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.