Home / 538,105,837.36-807,158,766.68-129,161,987.92

Finding the Fourth Proportional to 538,105,837.36, 807,158,766.68 and 129,161,987.92

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Solution

The fourth proportional to 538,105,837.36, 807,158,766.68 and 129,161,987.92 is: 193,742,984.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,105,837.36 : 807,158,766.68 = 129,161,987.92 : x
  2. Step 2: Convert to fraction form
    538,105,837.36/807,158,766.68 = 129,161,987.92/x
  3. Step 3: Cross multiply
    538,105,837.36x = 807,158,766.68 × 129,161,987.92
  4. Step 4: Simplify right side
    538,105,837.36x = 104,254,230,871,444,256
  5. Step 5: Solve for x
    x = 104,254,230,871,444,256/538,105,837.36
  6. Step 6: Final answer
    x = 193,742,984.43

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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.