Home / 486,140,012,997.75-729,143,823,954.48-127,961,992,614.16

Finding the Fourth Proportional to 486,140,012,997.75, 729,143,823,954.48 and 127,961,992,614.16

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Solution

The fourth proportional to 486,140,012,997.75, 729,143,823,954.48 and 127,961,992,614.16 is: 191,925,564,900.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,140,012,997.75 : 729,143,823,954.48 = 127,961,992,614.16 : x
  2. Step 2: Convert to fraction form
    486,140,012,997.75/729,143,823,954.48 = 127,961,992,614.16/x
  3. Step 3: Cross multiply
    486,140,012,997.75x = 729,143,823,954.48 × 127,961,992,614.16
  4. Step 4: Simplify right side
    486,140,012,997.75x = 93,302,696,615,523,544,727,552
  5. Step 5: Solve for x
    x = 93,302,696,615,523,544,727,552/486,140,012,997.75
  6. Step 6: Final answer
    x = 191,925,564,900.90

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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.