Home / 666,511,220.80-999,766,831.20-567,875,771.20

Finding the Fourth Proportional to 666,511,220.80, 999,766,831.20 and 567,875,771.20

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Solution

The fourth proportional to 666,511,220.80, 999,766,831.20 and 567,875,771.20 is: 851,813,656.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,511,220.80 : 999,766,831.20 = 567,875,771.20 : x
  2. Step 2: Convert to fraction form
    666,511,220.80/999,766,831.20 = 567,875,771.20/x
  3. Step 3: Cross multiply
    666,511,220.80x = 999,766,831.20 × 567,875,771.20
  4. Step 4: Simplify right side
    666,511,220.80x = 567,743,360,287,880,320
  5. Step 5: Solve for x
    x = 567,743,360,287,880,320/666,511,220.80
  6. Step 6: Final answer
    x = 851,813,656.80

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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.