Home / 870,911,998.80-1,306,367,998.20-850,756,606.80

Finding the Fourth Proportional to 870,911,998.80, 1,306,367,998.20 and 850,756,606.80

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Solution

The fourth proportional to 870,911,998.80, 1,306,367,998.20 and 850,756,606.80 is: 1,276,134,910.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,911,998.80 : 1,306,367,998.20 = 850,756,606.80 : x
  2. Step 2: Convert to fraction form
    870,911,998.80/1,306,367,998.20 = 850,756,606.80/x
  3. Step 3: Cross multiply
    870,911,998.80x = 1,306,367,998.20 × 850,756,606.80
  4. Step 4: Simplify right side
    870,911,998.80x = 1,111,401,205,380,740,480
  5. Step 5: Solve for x
    x = 1,111,401,205,380,740,480/870,911,998.80
  6. Step 6: Final answer
    x = 1,276,134,910.20

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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.