Home / 221,079,071.10-331,618,606.65-199,555,710.60

Finding the Fourth Proportional to 221,079,071.10, 331,618,606.65 and 199,555,710.60

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Solution

The fourth proportional to 221,079,071.10, 331,618,606.65 and 199,555,710.60 is: 299,333,565.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,079,071.10 : 331,618,606.65 = 199,555,710.60 : x
  2. Step 2: Convert to fraction form
    221,079,071.10/331,618,606.65 = 199,555,710.60/x
  3. Step 3: Cross multiply
    221,079,071.10x = 331,618,606.65 × 199,555,710.60
  4. Step 4: Simplify right side
    221,079,071.10x = 66,176,386,698,222,632
  5. Step 5: Solve for x
    x = 66,176,386,698,222,632/221,079,071.10
  6. Step 6: Final answer
    x = 299,333,565.90

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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.