Home / 640,975,457.88-884,546,131.86-347,620,025.88

Finding the Fourth Proportional to 640,975,457.88, 884,546,131.86 and 347,620,025.88

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Solution

The fourth proportional to 640,975,457.88, 884,546,131.86 and 347,620,025.88 is: 479,715,635.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,975,457.88 : 884,546,131.86 = 347,620,025.88 : x
  2. Step 2: Convert to fraction form
    640,975,457.88/884,546,131.86 = 347,620,025.88/x
  3. Step 3: Cross multiply
    640,975,457.88x = 884,546,131.86 × 347,620,025.88
  4. Step 4: Simplify right side
    640,975,457.88x = 307,485,949,249,227,072
  5. Step 5: Solve for x
    x = 307,485,949,249,227,072/640,975,457.88
  6. Step 6: Final answer
    x = 479,715,635.71

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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.