Home / 378,239,388.16-521,947,860.60-219,457,210.48

Finding the Fourth Proportional to 378,239,388.16, 521,947,860.60 and 219,457,210.48

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Solution

The fourth proportional to 378,239,388.16, 521,947,860.60 and 219,457,210.48 is: 302,837,898.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,239,388.16 : 521,947,860.60 = 219,457,210.48 : x
  2. Step 2: Convert to fraction form
    378,239,388.16/521,947,860.60 = 219,457,210.48/x
  3. Step 3: Cross multiply
    378,239,388.16x = 521,947,860.60 × 219,457,210.48
  4. Step 4: Simplify right side
    378,239,388.16x = 114,545,221,503,279,904
  5. Step 5: Solve for x
    x = 114,545,221,503,279,904/378,239,388.16
  6. Step 6: Final answer
    x = 302,837,898.67

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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.