Home / 672,851,268.64-1,009,270,168.08-212,789,516.32

Finding the Fourth Proportional to 672,851,268.64, 1,009,270,168.08 and 212,789,516.32

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Solution

The fourth proportional to 672,851,268.64, 1,009,270,168.08 and 212,789,516.32 is: 319,182,144.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,851,268.64 : 1,009,270,168.08 = 212,789,516.32 : x
  2. Step 2: Convert to fraction form
    672,851,268.64/1,009,270,168.08 = 212,789,516.32/x
  3. Step 3: Cross multiply
    672,851,268.64x = 1,009,270,168.08 × 212,789,516.32
  4. Step 4: Simplify right side
    672,851,268.64x = 214,762,110,901,948,320
  5. Step 5: Solve for x
    x = 214,762,110,901,948,320/672,851,268.64
  6. Step 6: Final answer
    x = 319,182,144.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.