Home / 664,760,129.58-917,482,893.30-386,463,078.32

Finding the Fourth Proportional to 664,760,129.58, 917,482,893.30 and 386,463,078.32

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Solution

The fourth proportional to 664,760,129.58, 917,482,893.30 and 386,463,078.32 is: 533,385,273.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,760,129.58 : 917,482,893.30 = 386,463,078.32 : x
  2. Step 2: Convert to fraction form
    664,760,129.58/917,482,893.30 = 386,463,078.32/x
  3. Step 3: Cross multiply
    664,760,129.58x = 917,482,893.30 × 386,463,078.32
  4. Step 4: Simplify right side
    664,760,129.58x = 354,573,263,246,070,656
  5. Step 5: Solve for x
    x = 354,573,263,246,070,656/664,760,129.58
  6. Step 6: Final answer
    x = 533,385,273.08

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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.