Home / 743,146,838.43-1,113,983,945.86-348,968,046.07

Finding the Fourth Proportional to 743,146,838.43, 1,113,983,945.86 and 348,968,046.07

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Solution

The fourth proportional to 743,146,838.43, 1,113,983,945.86 and 348,968,046.07 is: 523,106,310.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,146,838.43 : 1,113,983,945.86 = 348,968,046.07 : x
  2. Step 2: Convert to fraction form
    743,146,838.43/1,113,983,945.86 = 348,968,046.07/x
  3. Step 3: Cross multiply
    743,146,838.43x = 1,113,983,945.86 × 348,968,046.07
  4. Step 4: Simplify right side
    743,146,838.43x = 388,744,800,940,112,832
  5. Step 5: Solve for x
    x = 388,744,800,940,112,832/743,146,838.43
  6. Step 6: Final answer
    x = 523,106,310.67

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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.