Home / 312,685,529.52-468,723,289.72-148,879,273.28

Finding the Fourth Proportional to 312,685,529.52, 468,723,289.72 and 148,879,273.28

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Solution

The fourth proportional to 312,685,529.52, 468,723,289.72 and 148,879,273.28 is: 223,173,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,685,529.52 : 468,723,289.72 = 148,879,273.28 : x
  2. Step 2: Convert to fraction form
    312,685,529.52/468,723,289.72 = 148,879,273.28/x
  3. Step 3: Cross multiply
    312,685,529.52x = 468,723,289.72 × 148,879,273.28
  4. Step 4: Simplify right side
    312,685,529.52x = 69,783,182,742,924,496
  5. Step 5: Solve for x
    x = 69,783,182,742,924,496/312,685,529.52
  6. Step 6: Final answer
    x = 223,173,687.79

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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.