Home / 819,641,272.68-1,131,113,930.58-448,363,307.70

Finding the Fourth Proportional to 819,641,272.68, 1,131,113,930.58 and 448,363,307.70

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Solution

The fourth proportional to 819,641,272.68, 1,131,113,930.58 and 448,363,307.70 is: 618,746,273.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,641,272.68 : 1,131,113,930.58 = 448,363,307.70 : x
  2. Step 2: Convert to fraction form
    819,641,272.68/1,131,113,930.58 = 448,363,307.70/x
  3. Step 3: Cross multiply
    819,641,272.68x = 1,131,113,930.58 × 448,363,307.70
  4. Step 4: Simplify right side
    819,641,272.68x = 507,149,983,300,396,928
  5. Step 5: Solve for x
    x = 507,149,983,300,396,928/819,641,272.68
  6. Step 6: Final answer
    x = 618,746,273.77

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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.