Home / 128,503,947.58-192,592,158.81-60,196,064.38

Finding the Fourth Proportional to 128,503,947.58, 192,592,158.81 and 60,196,064.38

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Solution

The fourth proportional to 128,503,947.58, 192,592,158.81 and 60,196,064.38 is: 90,217,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,503,947.58 : 192,592,158.81 = 60,196,064.38 : x
  2. Step 2: Convert to fraction form
    128,503,947.58/192,592,158.81 = 60,196,064.38/x
  3. Step 3: Cross multiply
    128,503,947.58x = 192,592,158.81 × 60,196,064.38
  4. Step 4: Simplify right side
    128,503,947.58x = 11,593,289,990,809,944
  5. Step 5: Solve for x
    x = 11,593,289,990,809,944/128,503,947.58
  6. Step 6: Final answer
    x = 90,217,384.05

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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.