Home / 112,355,099.70-168,532,649.55-78,314,882.10

Finding the Fourth Proportional to 112,355,099.70, 168,532,649.55 and 78,314,882.10

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Solution

The fourth proportional to 112,355,099.70, 168,532,649.55 and 78,314,882.10 is: 117,472,323.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,355,099.70 : 168,532,649.55 = 78,314,882.10 : x
  2. Step 2: Convert to fraction form
    112,355,099.70/168,532,649.55 = 78,314,882.10/x
  3. Step 3: Cross multiply
    112,355,099.70x = 168,532,649.55 × 78,314,882.10
  4. Step 4: Simplify right side
    112,355,099.70x = 13,198,614,579,508,868
  5. Step 5: Solve for x
    x = 13,198,614,579,508,868/112,355,099.70
  6. Step 6: Final answer
    x = 117,472,323.15

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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.