Home / 1,225,168,422.66-1,690,875,361.86-696,611,605.46

Finding the Fourth Proportional to 1,225,168,422.66, 1,690,875,361.86 and 696,611,605.46

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Solution

The fourth proportional to 1,225,168,422.66, 1,690,875,361.86 and 696,611,605.46 is: 961,405,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,168,422.66 : 1,690,875,361.86 = 696,611,605.46 : x
  2. Step 2: Convert to fraction form
    1,225,168,422.66/1,690,875,361.86 = 696,611,605.46/x
  3. Step 3: Cross multiply
    1,225,168,422.66x = 1,690,875,361.86 × 696,611,605.46
  4. Step 4: Simplify right side
    1,225,168,422.66x = 1,177,883,400,458,053,120
  5. Step 5: Solve for x
    x = 1,177,883,400,458,053,120/1,225,168,422.66
  6. Step 6: Final answer
    x = 961,405,288.18

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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.