Home / 513,848,109.92-709,108,596.60-278,898,758.24

Finding the Fourth Proportional to 513,848,109.92, 709,108,596.60 and 278,898,758.24

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Solution

The fourth proportional to 513,848,109.92, 709,108,596.60 and 278,898,758.24 is: 384,879,312.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,848,109.92 : 709,108,596.60 = 278,898,758.24 : x
  2. Step 2: Convert to fraction form
    513,848,109.92/709,108,596.60 = 278,898,758.24/x
  3. Step 3: Cross multiply
    513,848,109.92x = 709,108,596.60 × 278,898,758.24
  4. Step 4: Simplify right side
    513,848,109.92x = 197,769,507,049,049,088
  5. Step 5: Solve for x
    x = 197,769,507,049,049,088/513,848,109.92
  6. Step 6: Final answer
    x = 384,879,312.06

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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.