Home / 86,902,382.70-130,369,320.45-43,662,768.30

Finding the Fourth Proportional to 86,902,382.70, 130,369,320.45 and 43,662,768.30

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Solution

The fourth proportional to 86,902,382.70, 130,369,320.45 and 43,662,768.30 is: 65,502,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,902,382.70 : 130,369,320.45 = 43,662,768.30 : x
  2. Step 2: Convert to fraction form
    86,902,382.70/130,369,320.45 = 43,662,768.30/x
  3. Step 3: Cross multiply
    86,902,382.70x = 130,369,320.45 × 43,662,768.30
  4. Step 4: Simplify right side
    86,902,382.70x = 5,692,285,432,236,801
  5. Step 5: Solve for x
    x = 5,692,285,432,236,801/86,902,382.70
  6. Step 6: Final answer
    x = 65,502,063.99

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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.