Home / 780,331,047.91-1,170,204,943.61-313,835,017.05

Finding the Fourth Proportional to 780,331,047.91, 1,170,204,943.61 and 313,835,017.05

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Solution

The fourth proportional to 780,331,047.91, 1,170,204,943.61 and 313,835,017.05 is: 470,635,237.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,331,047.91 : 1,170,204,943.61 = 313,835,017.05 : x
  2. Step 2: Convert to fraction form
    780,331,047.91/1,170,204,943.61 = 313,835,017.05/x
  3. Step 3: Cross multiply
    780,331,047.91x = 1,170,204,943.61 × 313,835,017.05
  4. Step 4: Simplify right side
    780,331,047.91x = 367,251,288,430,623,232
  5. Step 5: Solve for x
    x = 367,251,288,430,623,232/780,331,047.91
  6. Step 6: Final answer
    x = 470,635,237.97

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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.