Home / 372,322,764.80-513,841,707.72-278,073,284.16

Finding the Fourth Proportional to 372,322,764.80, 513,841,707.72 and 278,073,284.16

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Solution

The fourth proportional to 372,322,764.80, 513,841,707.72 and 278,073,284.16 is: 383,768,237.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,322,764.80 : 513,841,707.72 = 278,073,284.16 : x
  2. Step 2: Convert to fraction form
    372,322,764.80/513,841,707.72 = 278,073,284.16/x
  3. Step 3: Cross multiply
    372,322,764.80x = 513,841,707.72 × 278,073,284.16
  4. Step 4: Simplify right side
    372,322,764.80x = 142,885,651,204,083,248
  5. Step 5: Solve for x
    x = 142,885,651,204,083,248/372,322,764.80
  6. Step 6: Final answer
    x = 383,768,237.44

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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.