Home / 656,369,090.64-906,068,245.32-408,972,676.32

Finding the Fourth Proportional to 656,369,090.64, 906,068,245.32 and 408,972,676.32

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Solution

The fourth proportional to 656,369,090.64, 906,068,245.32 and 408,972,676.32 is: 564,556,071.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,369,090.64 : 906,068,245.32 = 408,972,676.32 : x
  2. Step 2: Convert to fraction form
    656,369,090.64/906,068,245.32 = 408,972,676.32/x
  3. Step 3: Cross multiply
    656,369,090.64x = 906,068,245.32 × 408,972,676.32
  4. Step 4: Simplify right side
    656,369,090.64x = 370,557,155,217,086,720
  5. Step 5: Solve for x
    x = 370,557,155,217,086,720/656,369,090.64
  6. Step 6: Final answer
    x = 564,556,071.43

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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.