Home / 210,200,031.40-290,212,535.46-188,135,320.36

Finding the Fourth Proportional to 210,200,031.40, 290,212,535.46 and 188,135,320.36

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Solution

The fourth proportional to 210,200,031.40, 290,212,535.46 and 188,135,320.36 is: 259,748,906.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,200,031.40 : 290,212,535.46 = 188,135,320.36 : x
  2. Step 2: Convert to fraction form
    210,200,031.40/290,212,535.46 = 188,135,320.36/x
  3. Step 3: Cross multiply
    210,200,031.40x = 290,212,535.46 × 188,135,320.36
  4. Step 4: Simplify right side
    210,200,031.40x = 54,599,228,331,254,960
  5. Step 5: Solve for x
    x = 54,599,228,331,254,960/210,200,031.40
  6. Step 6: Final answer
    x = 259,748,906.64

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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.