Home / 146,709,749.70-220,064,624.55-78,685,301.70

Finding the Fourth Proportional to 146,709,749.70, 220,064,624.55 and 78,685,301.70

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Solution

The fourth proportional to 146,709,749.70, 220,064,624.55 and 78,685,301.70 is: 118,027,952.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,709,749.70 : 220,064,624.55 = 78,685,301.70 : x
  2. Step 2: Convert to fraction form
    146,709,749.70/220,064,624.55 = 78,685,301.70/x
  3. Step 3: Cross multiply
    146,709,749.70x = 220,064,624.55 × 78,685,301.70
  4. Step 4: Simplify right side
    146,709,749.70x = 17,315,851,376,213,978
  5. Step 5: Solve for x
    x = 17,315,851,376,213,978/146,709,749.70
  6. Step 6: Final answer
    x = 118,027,952.55

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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.