Home / 121,535,649.81-167,719,183.65-65,781,060

Finding the Fourth Proportional to 121,535,649.81, 167,719,183.65 and 65,781,060

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Solution

The fourth proportional to 121,535,649.81, 167,719,183.65 and 65,781,060 is: 90,777,855.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535,649.81 : 167,719,183.65 = 65,781,060 : x
  2. Step 2: Convert to fraction form
    121,535,649.81/167,719,183.65 = 65,781,060/x
  3. Step 3: Cross multiply
    121,535,649.81x = 167,719,183.65 × 65,781,060
  4. Step 4: Simplify right side
    121,535,649.81x = 11,032,745,682,831,670
  5. Step 5: Solve for x
    x = 11,032,745,682,831,670/121,535,649.81
  6. Step 6: Final answer
    x = 90,777,855.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.