Home / 780,024,043.35-1,170,036,065.03-320,292,148.95

Finding the Fourth Proportional to 780,024,043.35, 1,170,036,065.03 and 320,292,148.95

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Solution

The fourth proportional to 780,024,043.35, 1,170,036,065.03 and 320,292,148.95 is: 480,438,223.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,024,043.35 : 1,170,036,065.03 = 320,292,148.95 : x
  2. Step 2: Convert to fraction form
    780,024,043.35/1,170,036,065.03 = 320,292,148.95/x
  3. Step 3: Cross multiply
    780,024,043.35x = 1,170,036,065.03 × 320,292,148.95
  4. Step 4: Simplify right side
    780,024,043.35x = 374,753,365,615,859,200
  5. Step 5: Solve for x
    x = 374,753,365,615,859,200/780,024,043.35
  6. Step 6: Final answer
    x = 480,438,223.43

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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.