Home / 1,294,708,759.20-1,942,063,138.80-476,651,786.40

Finding the Fourth Proportional to 1,294,708,759.20, 1,942,063,138.80 and 476,651,786.40

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Solution

The fourth proportional to 1,294,708,759.20, 1,942,063,138.80 and 476,651,786.40 is: 714,977,679.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,708,759.20 : 1,942,063,138.80 = 476,651,786.40 : x
  2. Step 2: Convert to fraction form
    1,294,708,759.20/1,942,063,138.80 = 476,651,786.40/x
  3. Step 3: Cross multiply
    1,294,708,759.20x = 1,942,063,138.80 × 476,651,786.40
  4. Step 4: Simplify right side
    1,294,708,759.20x = 925,687,864,410,611,072
  5. Step 5: Solve for x
    x = 925,687,864,410,611,072/1,294,708,759.20
  6. Step 6: Final answer
    x = 714,977,679.60

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Double scale
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Similar ratio
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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.