Home / 826,595,439.52-1,140,701,768.14-455,317,470.90

Finding the Fourth Proportional to 826,595,439.52, 1,140,701,768.14 and 455,317,470.90

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Solution

The fourth proportional to 826,595,439.52, 1,140,701,768.14 and 455,317,470.90 is: 628,338,143.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,595,439.52 : 1,140,701,768.14 = 455,317,470.90 : x
  2. Step 2: Convert to fraction form
    826,595,439.52/1,140,701,768.14 = 455,317,470.90/x
  3. Step 3: Cross multiply
    826,595,439.52x = 1,140,701,768.14 × 455,317,470.90
  4. Step 4: Simplify right side
    826,595,439.52x = 519,381,444,120,663,040
  5. Step 5: Solve for x
    x = 519,381,444,120,663,040/826,595,439.52
  6. Step 6: Final answer
    x = 628,338,143.77

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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.