Home / 128,047,031.82-192,101,103.76-41,785,599.06

Finding the Fourth Proportional to 128,047,031.82, 192,101,103.76 and 41,785,599.06

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Solution

The fourth proportional to 128,047,031.82, 192,101,103.76 and 41,785,599.06 is: 62,688,369.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,047,031.82 : 192,101,103.76 = 41,785,599.06 : x
  2. Step 2: Convert to fraction form
    128,047,031.82/192,101,103.76 = 41,785,599.06/x
  3. Step 3: Cross multiply
    128,047,031.82x = 192,101,103.76 × 41,785,599.06
  4. Step 4: Simplify right side
    128,047,031.82x = 8,027,059,700,698,819
  5. Step 5: Solve for x
    x = 8,027,059,700,698,819/128,047,031.82
  6. Step 6: Final answer
    x = 62,688,369.94

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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.