Home / 826,595,436.52-1,140,701,763.99-455,317,467.90

Finding the Fourth Proportional to 826,595,436.52, 1,140,701,763.99 and 455,317,467.90

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Solution

The fourth proportional to 826,595,436.52, 1,140,701,763.99 and 455,317,467.90 is: 628,338,139.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,595,436.52 : 1,140,701,763.99 = 455,317,467.90 : x
  2. Step 2: Convert to fraction form
    826,595,436.52/1,140,701,763.99 = 455,317,467.90/x
  3. Step 3: Cross multiply
    826,595,436.52x = 1,140,701,763.99 × 455,317,467.90
  4. Step 4: Simplify right side
    826,595,436.52x = 519,381,438,808,990,208
  5. Step 5: Solve for x
    x = 519,381,438,808,990,208/826,595,436.52
  6. Step 6: Final answer
    x = 628,338,139.63

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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.