Home / 210,293,943.05-315,510,994.26-132,481,013.40

Finding the Fourth Proportional to 210,293,943.05, 315,510,994.26 and 132,481,013.40

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Solution

The fourth proportional to 210,293,943.05, 315,510,994.26 and 132,481,013.40 is: 198,765,668.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,293,943.05 : 315,510,994.26 = 132,481,013.40 : x
  2. Step 2: Convert to fraction form
    210,293,943.05/315,510,994.26 = 132,481,013.40/x
  3. Step 3: Cross multiply
    210,293,943.05x = 315,510,994.26 × 132,481,013.40
  4. Step 4: Simplify right side
    210,293,943.05x = 41,799,216,258,406,384
  5. Step 5: Solve for x
    x = 41,799,216,258,406,384/210,293,943.05
  6. Step 6: Final answer
    x = 198,765,668.91

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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.