Home / 186,147,920.39-278,858,631.69-145,014,760.83

Finding the Fourth Proportional to 186,147,920.39, 278,858,631.69 and 145,014,760.83

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Solution

The fourth proportional to 186,147,920.39, 278,858,631.69 and 145,014,760.83 is: 217,239,159.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,147,920.39 : 278,858,631.69 = 145,014,760.83 : x
  2. Step 2: Convert to fraction form
    186,147,920.39/278,858,631.69 = 145,014,760.83/x
  3. Step 3: Cross multiply
    186,147,920.39x = 278,858,631.69 × 145,014,760.83
  4. Step 4: Simplify right side
    186,147,920.39x = 40,438,617,779,906,416
  5. Step 5: Solve for x
    x = 40,438,617,779,906,416/186,147,920.39
  6. Step 6: Final answer
    x = 217,239,159.56

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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.