Home / 372,322,762.80-513,841,704.95-278,073,282.16

Finding the Fourth Proportional to 372,322,762.80, 513,841,704.95 and 278,073,282.16

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Solution

The fourth proportional to 372,322,762.80, 513,841,704.95 and 278,073,282.16 is: 383,768,234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,322,762.80 : 513,841,704.95 = 278,073,282.16 : x
  2. Step 2: Convert to fraction form
    372,322,762.80/513,841,704.95 = 278,073,282.16/x
  3. Step 3: Cross multiply
    372,322,762.80x = 513,841,704.95 × 278,073,282.16
  4. Step 4: Simplify right side
    372,322,762.80x = 142,885,649,406,136,832
  5. Step 5: Solve for x
    x = 142,885,649,406,136,832/372,322,762.80
  6. Step 6: Final answer
    x = 383,768,234.67

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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.