Home / 123,457,898.64-185,149,027.44-85,364,207.76

Finding the Fourth Proportional to 123,457,898.64, 185,149,027.44 and 85,364,207.76

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Solution

The fourth proportional to 123,457,898.64, 185,149,027.44 and 85,364,207.76 is: 128,020,160.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,457,898.64 : 185,149,027.44 = 85,364,207.76 : x
  2. Step 2: Convert to fraction form
    123,457,898.64/185,149,027.44 = 85,364,207.76/x
  3. Step 3: Cross multiply
    123,457,898.64x = 185,149,027.44 × 85,364,207.76
  4. Step 4: Simplify right side
    123,457,898.64x = 15,805,100,044,950,102
  5. Step 5: Solve for x
    x = 15,805,100,044,950,102/123,457,898.64
  6. Step 6: Final answer
    x = 128,020,160.87

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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.