Home / 640,285,796.88-883,604,431.08-375,973,634.16

Finding the Fourth Proportional to 640,285,796.88, 883,604,431.08 and 375,973,634.16

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Solution

The fourth proportional to 640,285,796.88, 883,604,431.08 and 375,973,634.16 is: 518,849,505.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,285,796.88 : 883,604,431.08 = 375,973,634.16 : x
  2. Step 2: Convert to fraction form
    640,285,796.88/883,604,431.08 = 375,973,634.16/x
  3. Step 3: Cross multiply
    640,285,796.88x = 883,604,431.08 × 375,973,634.16
  4. Step 4: Simplify right side
    640,285,796.88x = 332,211,969,113,026,880
  5. Step 5: Solve for x
    x = 332,211,969,113,026,880/640,285,796.88
  6. Step 6: Final answer
    x = 518,849,505.54

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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.