Home / 15,298,627,007.36-21,112,148,996.64-8,869,696,379.84

Finding the Fourth Proportional to 15,298,627,007.36, 21,112,148,996.64 and 8,869,696,379.84

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Solution

The fourth proportional to 15,298,627,007.36, 21,112,148,996.64 and 8,869,696,379.84 is: 12,240,206,355.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298,627,007.36 : 21,112,148,996.64 = 8,869,696,379.84 : x
  2. Step 2: Convert to fraction form
    15,298,627,007.36/21,112,148,996.64 = 8,869,696,379.84/x
  3. Step 3: Cross multiply
    15,298,627,007.36x = 21,112,148,996.64 × 8,869,696,379.84
  4. Step 4: Simplify right side
    15,298,627,007.36x = 187,258,351,526,140,510,208
  5. Step 5: Solve for x
    x = 187,258,351,526,140,510,208/15,298,627,007.36
  6. Step 6: Final answer
    x = 12,240,206,355.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.