Home / 288,789,152.34-398,538,051.53-163,338,893.46

Finding the Fourth Proportional to 288,789,152.34, 398,538,051.53 and 163,338,893.46

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Solution

The fourth proportional to 288,789,152.34, 398,538,051.53 and 163,338,893.46 is: 225,412,775.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,789,152.34 : 398,538,051.53 = 163,338,893.46 : x
  2. Step 2: Convert to fraction form
    288,789,152.34/398,538,051.53 = 163,338,893.46/x
  3. Step 3: Cross multiply
    288,789,152.34x = 398,538,051.53 × 163,338,893.46
  4. Step 4: Simplify right side
    288,789,152.34x = 65,096,764,338,614,656
  5. Step 5: Solve for x
    x = 65,096,764,338,614,656/288,789,152.34
  6. Step 6: Final answer
    x = 225,412,775.41

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.