Home / 405,016,048.39-558,922,165.68-219,377,063.92

Finding the Fourth Proportional to 405,016,048.39, 558,922,165.68 and 219,377,063.92

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Solution

The fourth proportional to 405,016,048.39, 558,922,165.68 and 219,377,063.92 is: 302,740,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,016,048.39 : 558,922,165.68 = 219,377,063.92 : x
  2. Step 2: Convert to fraction form
    405,016,048.39/558,922,165.68 = 219,377,063.92/x
  3. Step 3: Cross multiply
    405,016,048.39x = 558,922,165.68 × 219,377,063.92
  4. Step 4: Simplify right side
    405,016,048.39x = 122,614,703,666,686,176
  5. Step 5: Solve for x
    x = 122,614,703,666,686,176/405,016,048.39
  6. Step 6: Final answer
    x = 302,740,358.45

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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.