Home / 918,570,986.60-1,377,856,479.90-823,868,200.40

Finding the Fourth Proportional to 918,570,986.60, 1,377,856,479.90 and 823,868,200.40

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Solution

The fourth proportional to 918,570,986.60, 1,377,856,479.90 and 823,868,200.40 is: 1,235,802,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,570,986.60 : 1,377,856,479.90 = 823,868,200.40 : x
  2. Step 2: Convert to fraction form
    918,570,986.60/1,377,856,479.90 = 823,868,200.40/x
  3. Step 3: Cross multiply
    918,570,986.60x = 1,377,856,479.90 × 823,868,200.40
  4. Step 4: Simplify right side
    918,570,986.60x = 1,135,172,138,504,691,840
  5. Step 5: Solve for x
    x = 1,135,172,138,504,691,840/918,570,986.60
  6. Step 6: Final answer
    x = 1,235,802,300.60

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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.