Home / 12,253,220,999.20-18,379,831,498.80-10,509,828,798.70

Finding the Fourth Proportional to 12,253,220,999.20, 18,379,831,498.80 and 10,509,828,798.70

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Solution

The fourth proportional to 12,253,220,999.20, 18,379,831,498.80 and 10,509,828,798.70 is: 15,764,743,198.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,253,220,999.20 : 18,379,831,498.80 = 10,509,828,798.70 : x
  2. Step 2: Convert to fraction form
    12,253,220,999.20/18,379,831,498.80 = 10,509,828,798.70/x
  3. Step 3: Cross multiply
    12,253,220,999.20x = 18,379,831,498.80 × 10,509,828,798.70
  4. Step 4: Simplify right side
    12,253,220,999.20x = 193,168,882,401,341,636,608
  5. Step 5: Solve for x
    x = 193,168,882,401,341,636,608/12,253,220,999.20
  6. Step 6: Final answer
    x = 15,764,743,198.05

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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.