Home / 138,739,338.46-191,446,334.76-76,848,113.26

Finding the Fourth Proportional to 138,739,338.46, 191,446,334.76 and 76,848,113.26

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Solution

The fourth proportional to 138,739,338.46, 191,446,334.76 and 76,848,113.26 is: 106,042,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,739,338.46 : 191,446,334.76 = 76,848,113.26 : x
  2. Step 2: Convert to fraction form
    138,739,338.46/191,446,334.76 = 76,848,113.26/x
  3. Step 3: Cross multiply
    138,739,338.46x = 191,446,334.76 × 76,848,113.26
  4. Step 4: Simplify right side
    138,739,338.46x = 14,712,289,616,848,356
  5. Step 5: Solve for x
    x = 14,712,289,616,848,356/138,739,338.46
  6. Step 6: Final answer
    x = 106,042,668.07

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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.