Home / 209,279,031.96-288,802,772.22-115,191,167.34

Finding the Fourth Proportional to 209,279,031.96, 288,802,772.22 and 115,191,167.34

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Solution

The fourth proportional to 209,279,031.96, 288,802,772.22 and 115,191,167.34 is: 158,962,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,279,031.96 : 288,802,772.22 = 115,191,167.34 : x
  2. Step 2: Convert to fraction form
    209,279,031.96/288,802,772.22 = 115,191,167.34/x
  3. Step 3: Cross multiply
    209,279,031.96x = 288,802,772.22 × 115,191,167.34
  4. Step 4: Simplify right side
    209,279,031.96x = 33,267,528,463,049,928
  5. Step 5: Solve for x
    x = 33,267,528,463,049,928/209,279,031.96
  6. Step 6: Final answer
    x = 158,962,549.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.