Home / 663,552,400.80-995,328,601.20-611,148,381.60

Finding the Fourth Proportional to 663,552,400.80, 995,328,601.20 and 611,148,381.60

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Solution

The fourth proportional to 663,552,400.80, 995,328,601.20 and 611,148,381.60 is: 916,722,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,552,400.80 : 995,328,601.20 = 611,148,381.60 : x
  2. Step 2: Convert to fraction form
    663,552,400.80/995,328,601.20 = 611,148,381.60/x
  3. Step 3: Cross multiply
    663,552,400.80x = 995,328,601.20 × 611,148,381.60
  4. Step 4: Simplify right side
    663,552,400.80x = 608,293,463,783,571,840
  5. Step 5: Solve for x
    x = 608,293,463,783,571,840/663,552,400.80
  6. Step 6: Final answer
    x = 916,722,572.40

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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.