Home / 221,328,007.60-331,992,011.40-144,886,817.20

Finding the Fourth Proportional to 221,328,007.60, 331,992,011.40 and 144,886,817.20

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Solution

The fourth proportional to 221,328,007.60, 331,992,011.40 and 144,886,817.20 is: 217,330,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,328,007.60 : 331,992,011.40 = 144,886,817.20 : x
  2. Step 2: Convert to fraction form
    221,328,007.60/331,992,011.40 = 144,886,817.20/x
  3. Step 3: Cross multiply
    221,328,007.60x = 331,992,011.40 × 144,886,817.20
  4. Step 4: Simplify right side
    221,328,007.60x = 48,101,265,867,572,112
  5. Step 5: Solve for x
    x = 48,101,265,867,572,112/221,328,007.60
  6. Step 6: Final answer
    x = 217,330,225.80

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1.5x scale

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.