Home / 138,966,526.16-208,237,220.28-74,279,537.36

Finding the Fourth Proportional to 138,966,526.16, 208,237,220.28 and 74,279,537.36

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Solution

The fourth proportional to 138,966,526.16, 208,237,220.28 and 74,279,537.36 is: 111,305,684.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,966,526.16 : 208,237,220.28 = 74,279,537.36 : x
  2. Step 2: Convert to fraction form
    138,966,526.16/208,237,220.28 = 74,279,537.36/x
  3. Step 3: Cross multiply
    138,966,526.16x = 208,237,220.28 × 74,279,537.36
  4. Step 4: Simplify right side
    138,966,526.16x = 15,467,764,383,530,810
  5. Step 5: Solve for x
    x = 15,467,764,383,530,810/138,966,526.16
  6. Step 6: Final answer
    x = 111,305,684.98

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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.