Home / 122,442,890.36-168,971,191.78-67,438,746.86

Finding the Fourth Proportional to 122,442,890.36, 168,971,191.78 and 67,438,746.86

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Solution

The fourth proportional to 122,442,890.36, 168,971,191.78 and 67,438,746.86 is: 93,065,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,442,890.36 : 168,971,191.78 = 67,438,746.86 : x
  2. Step 2: Convert to fraction form
    122,442,890.36/168,971,191.78 = 67,438,746.86/x
  3. Step 3: Cross multiply
    122,442,890.36x = 168,971,191.78 × 67,438,746.86
  4. Step 4: Simplify right side
    122,442,890.36x = 11,395,205,429,083,932
  5. Step 5: Solve for x
    x = 11,395,205,429,083,932/122,442,890.36
  6. Step 6: Final answer
    x = 93,065,472.36

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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.