Home / 755,105,121.86-1,042,097,440.91-457,759,896.55

Finding the Fourth Proportional to 755,105,121.86, 1,042,097,440.91 and 457,759,896.55

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Solution

The fourth proportional to 755,105,121.86, 1,042,097,440.91 and 457,759,896.55 is: 631,740,406.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,105,121.86 : 1,042,097,440.91 = 457,759,896.55 : x
  2. Step 2: Convert to fraction form
    755,105,121.86/1,042,097,440.91 = 457,759,896.55/x
  3. Step 3: Cross multiply
    755,105,121.86x = 1,042,097,440.91 × 457,759,896.55
  4. Step 4: Simplify right side
    755,105,121.86x = 477,030,416,741,087,296
  5. Step 5: Solve for x
    x = 477,030,416,741,087,296/755,105,121.86
  6. Step 6: Final answer
    x = 631,740,406.65

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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.