Home / 486,140,012,989.84-729,143,823,942.42-127,961,992,606.24

Finding the Fourth Proportional to 486,140,012,989.84, 729,143,823,942.42 and 127,961,992,606.24

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Solution

The fourth proportional to 486,140,012,989.84, 729,143,823,942.42 and 127,961,992,606.24 is: 191,925,564,888.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,140,012,989.84 : 729,143,823,942.42 = 127,961,992,606.24 : x
  2. Step 2: Convert to fraction form
    486,140,012,989.84/729,143,823,942.42 = 127,961,992,606.24/x
  3. Step 3: Cross multiply
    486,140,012,989.84x = 729,143,823,942.42 × 127,961,992,606.24
  4. Step 4: Simplify right side
    486,140,012,989.84x = 93,302,696,608,205,524,434,944
  5. Step 5: Solve for x
    x = 93,302,696,608,205,524,434,944/486,140,012,989.84
  6. Step 6: Final answer
    x = 191,925,564,888.97

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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.