Home / 456,729,145.32-630,286,844.22-247,885,290.84

Finding the Fourth Proportional to 456,729,145.32, 630,286,844.22 and 247,885,290.84

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Solution

The fourth proportional to 456,729,145.32, 630,286,844.22 and 247,885,290.84 is: 342,082,039.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,729,145.32 : 630,286,844.22 = 247,885,290.84 : x
  2. Step 2: Convert to fraction form
    456,729,145.32/630,286,844.22 = 247,885,290.84/x
  3. Step 3: Cross multiply
    456,729,145.32x = 630,286,844.22 × 247,885,290.84
  4. Step 4: Simplify right side
    456,729,145.32x = 156,238,837,692,100,480
  5. Step 5: Solve for x
    x = 156,238,837,692,100,480/456,729,145.32
  6. Step 6: Final answer
    x = 342,082,039.85

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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.