Home / 386,251,708.41-533,041,374.51-221,271,164.37

Finding the Fourth Proportional to 386,251,708.41, 533,041,374.51 and 221,271,164.37

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Solution

The fourth proportional to 386,251,708.41, 533,041,374.51 and 221,271,164.37 is: 305,362,236.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,251,708.41 : 533,041,374.51 = 221,271,164.37 : x
  2. Step 2: Convert to fraction form
    386,251,708.41/533,041,374.51 = 221,271,164.37/x
  3. Step 3: Cross multiply
    386,251,708.41x = 533,041,374.51 × 221,271,164.37
  4. Step 4: Simplify right side
    386,251,708.41x = 117,946,685,595,212,944
  5. Step 5: Solve for x
    x = 117,946,685,595,212,944/386,251,708.41
  6. Step 6: Final answer
    x = 305,362,236.66

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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.