Home / 421,777,828.08-632,708,323.38-145,392,656.22

Finding the Fourth Proportional to 421,777,828.08, 632,708,323.38 and 145,392,656.22

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Solution

The fourth proportional to 421,777,828.08, 632,708,323.38 and 145,392,656.22 is: 218,103,317.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,777,828.08 : 632,708,323.38 = 145,392,656.22 : x
  2. Step 2: Convert to fraction form
    421,777,828.08/632,708,323.38 = 145,392,656.22/x
  3. Step 3: Cross multiply
    421,777,828.08x = 632,708,323.38 × 145,392,656.22
  4. Step 4: Simplify right side
    421,777,828.08x = 91,991,143,748,720,928
  5. Step 5: Solve for x
    x = 91,991,143,748,720,928/421,777,828.08
  6. Step 6: Final answer
    x = 218,103,317.97

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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.