Home / 221,805,462.12-306,070,996.34-122,684,076.15

Finding the Fourth Proportional to 221,805,462.12, 306,070,996.34 and 122,684,076.15

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Solution

The fourth proportional to 221,805,462.12, 306,070,996.34 and 122,684,076.15 is: 169,292,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,805,462.12 : 306,070,996.34 = 122,684,076.15 : x
  2. Step 2: Convert to fraction form
    221,805,462.12/306,070,996.34 = 122,684,076.15/x
  3. Step 3: Cross multiply
    221,805,462.12x = 306,070,996.34 × 122,684,076.15
  4. Step 4: Simplify right side
    221,805,462.12x = 37,550,037,421,441,872
  5. Step 5: Solve for x
    x = 37,550,037,421,441,872/221,805,462.12
  6. Step 6: Final answer
    x = 169,292,663.32

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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.