Home / 112,093,403.80-168,266,076.90-86,647,221.40

Finding the Fourth Proportional to 112,093,403.80, 168,266,076.90 and 86,647,221.40

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Solution

The fourth proportional to 112,093,403.80, 168,266,076.90 and 86,647,221.40 is: 130,068,206.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,093,403.80 : 168,266,076.90 = 86,647,221.40 : x
  2. Step 2: Convert to fraction form
    112,093,403.80/168,266,076.90 = 86,647,221.40/x
  3. Step 3: Cross multiply
    112,093,403.80x = 168,266,076.90 × 86,647,221.40
  4. Step 4: Simplify right side
    112,093,403.80x = 14,579,788,019,263,728
  5. Step 5: Solve for x
    x = 14,579,788,019,263,728/112,093,403.80
  6. Step 6: Final answer
    x = 130,068,206.74

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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.