Home / 103,686,644.70-155,529,967.05-87,058,446.30

Finding the Fourth Proportional to 103,686,644.70, 155,529,967.05 and 87,058,446.30

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Solution

The fourth proportional to 103,686,644.70, 155,529,967.05 and 87,058,446.30 is: 130,587,669.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,686,644.70 : 155,529,967.05 = 87,058,446.30 : x
  2. Step 2: Convert to fraction form
    103,686,644.70/155,529,967.05 = 87,058,446.30/x
  3. Step 3: Cross multiply
    103,686,644.70x = 155,529,967.05 × 87,058,446.30
  4. Step 4: Simplify right side
    103,686,644.70x = 13,540,197,284,463,194
  5. Step 5: Solve for x
    x = 13,540,197,284,463,194/103,686,644.70
  6. Step 6: Final answer
    x = 130,587,669.45

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Similar ratio
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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.