Home / 221,618,009.70-332,427,014.55-139,988,672.10

Finding the Fourth Proportional to 221,618,009.70, 332,427,014.55 and 139,988,672.10

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Solution

The fourth proportional to 221,618,009.70, 332,427,014.55 and 139,988,672.10 is: 209,983,008.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,618,009.70 : 332,427,014.55 = 139,988,672.10 : x
  2. Step 2: Convert to fraction form
    221,618,009.70/332,427,014.55 = 139,988,672.10/x
  3. Step 3: Cross multiply
    221,618,009.70x = 332,427,014.55 × 139,988,672.10
  4. Step 4: Simplify right side
    221,618,009.70x = 46,536,016,337,021,880
  5. Step 5: Solve for x
    x = 46,536,016,337,021,880/221,618,009.70
  6. Step 6: Final answer
    x = 209,983,008.15

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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.