Home / 663,552,654.80-995,328,982.20-659,521,576.40

Finding the Fourth Proportional to 663,552,654.80, 995,328,982.20 and 659,521,576.40

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Solution

The fourth proportional to 663,552,654.80, 995,328,982.20 and 659,521,576.40 is: 989,282,364.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,654.80 : 995,328,982.20 = 659,521,576.40 : x
  2. Step 2: Convert to fraction form
    663,552,654.80/995,328,982.20 = 659,521,576.40/x
  3. Step 3: Cross multiply
    663,552,654.80x = 995,328,982.20 × 659,521,576.40
  4. Step 4: Simplify right side
    663,552,654.80x = 656,440,939,377,151,488
  5. Step 5: Solve for x
    x = 656,440,939,377,151,488/663,552,654.80
  6. Step 6: Final answer
    x = 989,282,364.60

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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.