Home / 210,818,405.64-290,888,055.96-132,456,556.74

Finding the Fourth Proportional to 210,818,405.64, 290,888,055.96 and 132,456,556.74

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Solution

The fourth proportional to 210,818,405.64, 290,888,055.96 and 132,456,556.74 is: 182,764,072.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,818,405.64 : 290,888,055.96 = 132,456,556.74 : x
  2. Step 2: Convert to fraction form
    210,818,405.64/290,888,055.96 = 132,456,556.74/x
  3. Step 3: Cross multiply
    210,818,405.64x = 290,888,055.96 × 132,456,556.74
  4. Step 4: Simplify right side
    210,818,405.64x = 38,530,030,289,254,032
  5. Step 5: Solve for x
    x = 38,530,030,289,254,032/210,818,405.64
  6. Step 6: Final answer
    x = 182,764,072.10

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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.