Home / 380,760,642.79-525,256,305.57-248,678,953.85

Finding the Fourth Proportional to 380,760,642.79, 525,256,305.57 and 248,678,953.85

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Solution

The fourth proportional to 380,760,642.79, 525,256,305.57 and 248,678,953.85 is: 343,050,656.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,760,642.79 : 525,256,305.57 = 248,678,953.85 : x
  2. Step 2: Convert to fraction form
    380,760,642.79/525,256,305.57 = 248,678,953.85/x
  3. Step 3: Cross multiply
    380,760,642.79x = 525,256,305.57 × 248,678,953.85
  4. Step 4: Simplify right side
    380,760,642.79x = 130,620,188,575,008,320
  5. Step 5: Solve for x
    x = 130,620,188,575,008,320/380,760,642.79
  6. Step 6: Final answer
    x = 343,050,656.75

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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.