Home / 229,579,091.38-316,816,120.52-129,107,498.77

Finding the Fourth Proportional to 229,579,091.38, 316,816,120.52 and 129,107,498.77

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Solution

The fourth proportional to 229,579,091.38, 316,816,120.52 and 129,107,498.77 is: 178,166,646.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,579,091.38 : 316,816,120.52 = 129,107,498.77 : x
  2. Step 2: Convert to fraction form
    229,579,091.38/316,816,120.52 = 129,107,498.77/x
  3. Step 3: Cross multiply
    229,579,091.38x = 316,816,120.52 × 129,107,498.77
  4. Step 4: Simplify right side
    229,579,091.38x = 40,903,336,890,352,064
  5. Step 5: Solve for x
    x = 40,903,336,890,352,064/229,579,091.38
  6. Step 6: Final answer
    x = 178,166,646.82

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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.