Home / 290,303,779.73-400,619,039.40-159,923,587.73

Finding the Fourth Proportional to 290,303,779.73, 400,619,039.40 and 159,923,587.73

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Solution

The fourth proportional to 290,303,779.73, 400,619,039.40 and 159,923,587.73 is: 220,694,453.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,303,779.73 : 400,619,039.40 = 159,923,587.73 : x
  2. Step 2: Convert to fraction form
    290,303,779.73/400,619,039.40 = 159,923,587.73/x
  3. Step 3: Cross multiply
    290,303,779.73x = 400,619,039.40 × 159,923,587.73
  4. Step 4: Simplify right side
    290,303,779.73x = 64,068,434,091,791,128
  5. Step 5: Solve for x
    x = 64,068,434,091,791,128/290,303,779.73
  6. Step 6: Final answer
    x = 220,694,453.76

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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.