Home / 146,709,719.70-220,064,579.55-78,685,271.70

Finding the Fourth Proportional to 146,709,719.70, 220,064,579.55 and 78,685,271.70

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Solution

The fourth proportional to 146,709,719.70, 220,064,579.55 and 78,685,271.70 is: 118,027,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,709,719.70 : 220,064,579.55 = 78,685,271.70 : x
  2. Step 2: Convert to fraction form
    146,709,719.70/220,064,579.55 = 78,685,271.70/x
  3. Step 3: Cross multiply
    146,709,719.70x = 220,064,579.55 × 78,685,271.70
  4. Step 4: Simplify right side
    146,709,719.70x = 17,315,841,233,438,016
  5. Step 5: Solve for x
    x = 17,315,841,233,438,016/146,709,719.70
  6. Step 6: Final answer
    x = 118,027,907.55

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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.