Home / 159,717,845.72-220,410,774.06-86,378,987.72

Finding the Fourth Proportional to 159,717,845.72, 220,410,774.06 and 86,378,987.72

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Solution

The fourth proportional to 159,717,845.72, 220,410,774.06 and 86,378,987.72 is: 119,203,082.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717,845.72 : 220,410,774.06 = 86,378,987.72 : x
  2. Step 2: Convert to fraction form
    159,717,845.72/220,410,774.06 = 86,378,987.72/x
  3. Step 3: Cross multiply
    159,717,845.72x = 220,410,774.06 × 86,378,987.72
  4. Step 4: Simplify right side
    159,717,845.72x = 19,038,859,545,884,436
  5. Step 5: Solve for x
    x = 19,038,859,545,884,436/159,717,845.72
  6. Step 6: Final answer
    x = 119,203,082.54

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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.