Home / 358,467,112.20-537,796,351.44-128,459,447.40

Finding the Fourth Proportional to 358,467,112.20, 537,796,351.44 and 128,459,447.40

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Solution

The fourth proportional to 358,467,112.20, 537,796,351.44 and 128,459,447.40 is: 192,723,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,467,112.20 : 537,796,351.44 = 128,459,447.40 : x
  2. Step 2: Convert to fraction form
    358,467,112.20/537,796,351.44 = 128,459,447.40/x
  3. Step 3: Cross multiply
    358,467,112.20x = 537,796,351.44 × 128,459,447.40
  4. Step 4: Simplify right side
    358,467,112.20x = 69,085,022,119,718,608
  5. Step 5: Solve for x
    x = 69,085,022,119,718,608/358,467,112.20
  6. Step 6: Final answer
    x = 192,723,459.89

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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.