Home / 780,024,174.10-1,170,036,261.15-320,292,279.70

Finding the Fourth Proportional to 780,024,174.10, 1,170,036,261.15 and 320,292,279.70

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Solution

The fourth proportional to 780,024,174.10, 1,170,036,261.15 and 320,292,279.70 is: 480,438,419.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,024,174.10 : 1,170,036,261.15 = 320,292,279.70 : x
  2. Step 2: Convert to fraction form
    780,024,174.10/1,170,036,261.15 = 320,292,279.70/x
  3. Step 3: Cross multiply
    780,024,174.10x = 1,170,036,261.15 × 320,292,279.70
  4. Step 4: Simplify right side
    780,024,174.10x = 374,753,581,415,398,080
  5. Step 5: Solve for x
    x = 374,753,581,415,398,080/780,024,174.10
  6. Step 6: Final answer
    x = 480,438,419.55

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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.