Home / 221,328,019.60-331,992,029.40-144,886,829.20

Finding the Fourth Proportional to 221,328,019.60, 331,992,029.40 and 144,886,829.20

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Solution

The fourth proportional to 221,328,019.60, 331,992,029.40 and 144,886,829.20 is: 217,330,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,328,019.60 : 331,992,029.40 = 144,886,829.20 : x
  2. Step 2: Convert to fraction form
    221,328,019.60/331,992,029.40 = 144,886,829.20/x
  3. Step 3: Cross multiply
    221,328,019.60x = 331,992,029.40 × 144,886,829.20
  4. Step 4: Simplify right side
    221,328,019.60x = 48,101,272,459,439,168
  5. Step 5: Solve for x
    x = 48,101,272,459,439,168/221,328,019.60
  6. Step 6: Final answer
    x = 217,330,243.80

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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.