Home / 85,356,666.76-128,035,196.97-49,201,357.72

Finding the Fourth Proportional to 85,356,666.76, 128,035,196.97 and 49,201,357.72

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Solution

The fourth proportional to 85,356,666.76, 128,035,196.97 and 49,201,357.72 is: 73,802,150.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,356,666.76 : 128,035,196.97 = 49,201,357.72 : x
  2. Step 2: Convert to fraction form
    85,356,666.76/128,035,196.97 = 49,201,357.72/x
  3. Step 3: Cross multiply
    85,356,666.76x = 128,035,196.97 × 49,201,357.72
  4. Step 4: Simplify right side
    85,356,666.76x = 6,299,505,526,871,630
  5. Step 5: Solve for x
    x = 6,299,505,526,871,630/85,356,666.76
  6. Step 6: Final answer
    x = 73,802,150.04

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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.