Home / 210,338,800.74-315,514,628.73-72,162,469.59

Finding the Fourth Proportional to 210,338,800.74, 315,514,628.73 and 72,162,469.59

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Solution

The fourth proportional to 210,338,800.74, 315,514,628.73 and 72,162,469.59 is: 108,245,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,338,800.74 : 315,514,628.73 = 72,162,469.59 : x
  2. Step 2: Convert to fraction form
    210,338,800.74/315,514,628.73 = 72,162,469.59/x
  3. Step 3: Cross multiply
    210,338,800.74x = 315,514,628.73 × 72,162,469.59
  4. Step 4: Simplify right side
    210,338,800.74x = 22,768,314,800,928,768
  5. Step 5: Solve for x
    x = 22,768,314,800,928,768/210,338,800.74
  6. Step 6: Final answer
    x = 108,245,909.56

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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.