Home / 648,195,665.63-972,295,991.62-156,908,131.43

Finding the Fourth Proportional to 648,195,665.63, 972,295,991.62 and 156,908,131.43

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Solution

The fourth proportional to 648,195,665.63, 972,295,991.62 and 156,908,131.43 is: 235,362,800.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,195,665.63 : 972,295,991.62 = 156,908,131.43 : x
  2. Step 2: Convert to fraction form
    648,195,665.63/972,295,991.62 = 156,908,131.43/x
  3. Step 3: Cross multiply
    648,195,665.63x = 972,295,991.62 × 156,908,131.43
  4. Step 4: Simplify right side
    648,195,665.63x = 152,561,147,236,719,392
  5. Step 5: Solve for x
    x = 152,561,147,236,719,392/648,195,665.63
  6. Step 6: Final answer
    x = 235,362,800.66

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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.