Home / 421,777,837.08-632,708,336.88-145,392,665.22

Finding the Fourth Proportional to 421,777,837.08, 632,708,336.88 and 145,392,665.22

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Solution

The fourth proportional to 421,777,837.08, 632,708,336.88 and 145,392,665.22 is: 218,103,331.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,777,837.08 : 632,708,336.88 = 145,392,665.22 : x
  2. Step 2: Convert to fraction form
    421,777,837.08/632,708,336.88 = 145,392,665.22/x
  3. Step 3: Cross multiply
    421,777,837.08x = 632,708,336.88 × 145,392,665.22
  4. Step 4: Simplify right side
    421,777,837.08x = 91,991,151,405,896,816
  5. Step 5: Solve for x
    x = 91,991,151,405,896,816/421,777,837.08
  6. Step 6: Final answer
    x = 218,103,331.47

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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.