Home / 948,689,272.80-1,420,910,542.80-778,819,960.80

Finding the Fourth Proportional to 948,689,272.80, 1,420,910,542.80 and 778,819,960.80

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Solution

The fourth proportional to 948,689,272.80, 1,420,910,542.80 and 778,819,960.80 is: 1,166,486,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,689,272.80 : 1,420,910,542.80 = 778,819,960.80 : x
  2. Step 2: Convert to fraction form
    948,689,272.80/1,420,910,542.80 = 778,819,960.80/x
  3. Step 3: Cross multiply
    948,689,272.80x = 1,420,910,542.80 × 778,819,960.80
  4. Step 4: Simplify right side
    948,689,272.80x = 1,106,633,493,243,802,624
  5. Step 5: Solve for x
    x = 1,106,633,493,243,802,624/948,689,272.80
  6. Step 6: Final answer
    x = 1,166,486,778.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.