Home / 151,165,579.36-208,615,336.12-85,108,775.26

Finding the Fourth Proportional to 151,165,579.36, 208,615,336.12 and 85,108,775.26

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Solution

The fourth proportional to 151,165,579.36, 208,615,336.12 and 85,108,775.26 is: 117,453,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,165,579.36 : 208,615,336.12 = 85,108,775.26 : x
  2. Step 2: Convert to fraction form
    151,165,579.36/208,615,336.12 = 85,108,775.26/x
  3. Step 3: Cross multiply
    151,165,579.36x = 208,615,336.12 × 85,108,775.26
  4. Step 4: Simplify right side
    151,165,579.36x = 17,754,995,757,626,442
  5. Step 5: Solve for x
    x = 17,754,995,757,626,442/151,165,579.36
  6. Step 6: Final answer
    x = 117,453,958.98

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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.