Home / 309,337,137.09-428,009,368.47-269,727,208.02

Finding the Fourth Proportional to 309,337,137.09, 428,009,368.47 and 269,727,208.02

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Solution

The fourth proportional to 309,337,137.09, 428,009,368.47 and 269,727,208.02 is: 373,203,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,337,137.09 : 428,009,368.47 = 269,727,208.02 : x
  2. Step 2: Convert to fraction form
    309,337,137.09/428,009,368.47 = 269,727,208.02/x
  3. Step 3: Cross multiply
    309,337,137.09x = 428,009,368.47 × 269,727,208.02
  4. Step 4: Simplify right side
    309,337,137.09x = 115,445,771,963,816,512
  5. Step 5: Solve for x
    x = 115,445,771,963,816,512/309,337,137.09
  6. Step 6: Final answer
    x = 373,203,725.39

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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.