Home / 780,220,427.28-1,170,330,618.31-359,917,444.96

Finding the Fourth Proportional to 780,220,427.28, 1,170,330,618.31 and 359,917,444.96

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Solution

The fourth proportional to 780,220,427.28, 1,170,330,618.31 and 359,917,444.96 is: 539,876,157.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,220,427.28 : 1,170,330,618.31 = 359,917,444.96 : x
  2. Step 2: Convert to fraction form
    780,220,427.28/1,170,330,618.31 = 359,917,444.96/x
  3. Step 3: Cross multiply
    780,220,427.28x = 1,170,330,618.31 × 359,917,444.96
  4. Step 4: Simplify right side
    780,220,427.28x = 421,222,405,900,471,424
  5. Step 5: Solve for x
    x = 421,222,405,900,471,424/780,220,427.28
  6. Step 6: Final answer
    x = 539,876,157.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.