Home / 151,572,820.49-209,119,115.07-123,647,256.68

Finding the Fourth Proportional to 151,572,820.49, 209,119,115.07 and 123,647,256.68

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Solution

The fourth proportional to 151,572,820.49, 209,119,115.07 and 123,647,256.68 is: 170,591,302.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,572,820.49 : 209,119,115.07 = 123,647,256.68 : x
  2. Step 2: Convert to fraction form
    151,572,820.49/209,119,115.07 = 123,647,256.68/x
  3. Step 3: Cross multiply
    151,572,820.49x = 209,119,115.07 × 123,647,256.68
  4. Step 4: Simplify right side
    151,572,820.49x = 25,857,004,896,709,148
  5. Step 5: Solve for x
    x = 25,857,004,896,709,148/151,572,820.49
  6. Step 6: Final answer
    x = 170,591,302.67

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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.