Home / 138,739,337.46-191,446,333.38-76,848,112.26

Finding the Fourth Proportional to 138,739,337.46, 191,446,333.38 and 76,848,112.26

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Solution

The fourth proportional to 138,739,337.46, 191,446,333.38 and 76,848,112.26 is: 106,042,666.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,739,337.46 : 191,446,333.38 = 76,848,112.26 : x
  2. Step 2: Convert to fraction form
    138,739,337.46/191,446,333.38 = 76,848,112.26/x
  3. Step 3: Cross multiply
    138,739,337.46x = 191,446,333.38 × 76,848,112.26
  4. Step 4: Simplify right side
    138,739,337.46x = 14,712,289,319,351,626
  5. Step 5: Solve for x
    x = 14,712,289,319,351,626/138,739,337.46
  6. Step 6: Final answer
    x = 106,042,666.69

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1.5x scale

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.