Home / 219,904,558.40-329,772,856.80-66,499,630.40

Finding the Fourth Proportional to 219,904,558.40, 329,772,856.80 and 66,499,630.40

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Solution

The fourth proportional to 219,904,558.40, 329,772,856.80 and 66,499,630.40 is: 99,724,049.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,904,558.40 : 329,772,856.80 = 66,499,630.40 : x
  2. Step 2: Convert to fraction form
    219,904,558.40/329,772,856.80 = 66,499,630.40/x
  3. Step 3: Cross multiply
    219,904,558.40x = 329,772,856.80 × 66,499,630.40
  4. Step 4: Simplify right side
    219,904,558.40x = 21,929,773,093,152,128
  5. Step 5: Solve for x
    x = 21,929,773,093,152,128/219,904,558.40
  6. Step 6: Final answer
    x = 99,724,049.62

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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.