Home / 217,090,003.20-325,635,004.80-153,389,011.20

Finding the Fourth Proportional to 217,090,003.20, 325,635,004.80 and 153,389,011.20

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Solution

The fourth proportional to 217,090,003.20, 325,635,004.80 and 153,389,011.20 is: 230,083,516.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,090,003.20 : 325,635,004.80 = 153,389,011.20 : x
  2. Step 2: Convert to fraction form
    217,090,003.20/325,635,004.80 = 153,389,011.20/x
  3. Step 3: Cross multiply
    217,090,003.20x = 325,635,004.80 × 153,389,011.20
  4. Step 4: Simplify right side
    217,090,003.20x = 49,948,831,398,379,248
  5. Step 5: Solve for x
    x = 49,948,831,398,379,248/217,090,003.20
  6. Step 6: Final answer
    x = 230,083,516.80

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1.5x scale

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.