Home / 343,296,940.80-514,945,411.20-84,510,105.60

Finding the Fourth Proportional to 343,296,940.80, 514,945,411.20 and 84,510,105.60

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Solution

The fourth proportional to 343,296,940.80, 514,945,411.20 and 84,510,105.60 is: 126,765,158.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,296,940.80 : 514,945,411.20 = 84,510,105.60 : x
  2. Step 2: Convert to fraction form
    343,296,940.80/514,945,411.20 = 84,510,105.60/x
  3. Step 3: Cross multiply
    343,296,940.80x = 514,945,411.20 × 84,510,105.60
  4. Step 4: Simplify right side
    343,296,940.80x = 43,518,091,078,747,416
  5. Step 5: Solve for x
    x = 43,518,091,078,747,416/343,296,940.80
  6. Step 6: Final answer
    x = 126,765,158.40

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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.