Home / 2,781,330,331.40-4,172,555,369.10-816,179,611.40

Finding the Fourth Proportional to 2,781,330,331.40, 4,172,555,369.10 and 816,179,611.40

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Solution

The fourth proportional to 2,781,330,331.40, 4,172,555,369.10 and 816,179,611.40 is: 1,224,433,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,781,330,331.40 : 4,172,555,369.10 = 816,179,611.40 : x
  2. Step 2: Convert to fraction form
    2,781,330,331.40/4,172,555,369.10 = 816,179,611.40/x
  3. Step 3: Cross multiply
    2,781,330,331.40x = 4,172,555,369.10 × 816,179,611.40
  4. Step 4: Simplify right side
    2,781,330,331.40x = 3,405,554,619,697,021,440
  5. Step 5: Solve for x
    x = 3,405,554,619,697,021,440/2,781,330,331.40
  6. Step 6: Final answer
    x = 1,224,433,711.18

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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.