Home / 839,809,611.80-1,259,714,417.70-565,696,280.60

Finding the Fourth Proportional to 839,809,611.80, 1,259,714,417.70 and 565,696,280.60

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Solution

The fourth proportional to 839,809,611.80, 1,259,714,417.70 and 565,696,280.60 is: 848,544,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,809,611.80 : 1,259,714,417.70 = 565,696,280.60 : x
  2. Step 2: Convert to fraction form
    839,809,611.80/1,259,714,417.70 = 565,696,280.60/x
  3. Step 3: Cross multiply
    839,809,611.80x = 1,259,714,417.70 × 565,696,280.60
  4. Step 4: Simplify right side
    839,809,611.80x = 712,615,760,711,084,800
  5. Step 5: Solve for x
    x = 712,615,760,711,084,800/839,809,611.80
  6. Step 6: Final answer
    x = 848,544,420.90

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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.