Home / 112,455,853.40-168,683,780.10-67,068,896.60

Finding the Fourth Proportional to 112,455,853.40, 168,683,780.10 and 67,068,896.60

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Solution

The fourth proportional to 112,455,853.40, 168,683,780.10 and 67,068,896.60 is: 100,603,344.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,455,853.40 : 168,683,780.10 = 67,068,896.60 : x
  2. Step 2: Convert to fraction form
    112,455,853.40/168,683,780.10 = 67,068,896.60/x
  3. Step 3: Cross multiply
    112,455,853.40x = 168,683,780.10 × 67,068,896.60
  4. Step 4: Simplify right side
    112,455,853.40x = 11,313,435,005,624,038
  5. Step 5: Solve for x
    x = 11,313,435,005,624,038/112,455,853.40
  6. Step 6: Final answer
    x = 100,603,344.90

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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.