Home / 112,331,979.40-168,497,969.10-74,036,734.60

Finding the Fourth Proportional to 112,331,979.40, 168,497,969.10 and 74,036,734.60

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Solution

The fourth proportional to 112,331,979.40, 168,497,969.10 and 74,036,734.60 is: 111,055,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,331,979.40 : 168,497,969.10 = 74,036,734.60 : x
  2. Step 2: Convert to fraction form
    112,331,979.40/168,497,969.10 = 74,036,734.60/x
  3. Step 3: Cross multiply
    112,331,979.40x = 168,497,969.10 × 74,036,734.60
  4. Step 4: Simplify right side
    112,331,979.40x = 12,475,039,418,895,700
  5. Step 5: Solve for x
    x = 12,475,039,418,895,700/112,331,979.40
  6. Step 6: Final answer
    x = 111,055,101.90

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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.