Home / 358,786,121.80-538,151,189.10-140,394,051.40

Finding the Fourth Proportional to 358,786,121.80, 538,151,189.10 and 140,394,051.40

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Solution

The fourth proportional to 358,786,121.80, 538,151,189.10 and 140,394,051.40 is: 210,580,123.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,786,121.80 : 538,151,189.10 = 140,394,051.40 : x
  2. Step 2: Convert to fraction form
    358,786,121.80/538,151,189.10 = 140,394,051.40/x
  3. Step 3: Cross multiply
    358,786,121.80x = 538,151,189.10 × 140,394,051.40
  4. Step 4: Simplify right side
    358,786,121.80x = 75,553,225,703,476,528
  5. Step 5: Solve for x
    x = 75,553,225,703,476,528/358,786,121.80
  6. Step 6: Final answer
    x = 210,580,123.12

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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.