Home / 124,719,908.70-187,079,863.05-78,803,406.30

Finding the Fourth Proportional to 124,719,908.70, 187,079,863.05 and 78,803,406.30

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Solution

The fourth proportional to 124,719,908.70, 187,079,863.05 and 78,803,406.30 is: 118,205,109.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,719,908.70 : 187,079,863.05 = 78,803,406.30 : x
  2. Step 2: Convert to fraction form
    124,719,908.70/187,079,863.05 = 78,803,406.30/x
  3. Step 3: Cross multiply
    124,719,908.70x = 187,079,863.05 × 78,803,406.30
  4. Step 4: Simplify right side
    124,719,908.70x = 14,742,530,458,477,508
  5. Step 5: Solve for x
    x = 14,742,530,458,477,508/124,719,908.70
  6. Step 6: Final answer
    x = 118,205,109.45

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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.