Home / 403,589,090.35-556,952,941.40-217,950,089.64

Finding the Fourth Proportional to 403,589,090.35, 556,952,941.40 and 217,950,089.64

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Solution

The fourth proportional to 403,589,090.35, 556,952,941.40 and 217,950,089.64 is: 300,771,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,589,090.35 : 556,952,941.40 = 217,950,089.64 : x
  2. Step 2: Convert to fraction form
    403,589,090.35/556,952,941.40 = 217,950,089.64/x
  3. Step 3: Cross multiply
    403,589,090.35x = 556,952,941.40 × 217,950,089.64
  4. Step 4: Simplify right side
    403,589,090.35x = 121,387,943,503,391,648
  5. Step 5: Solve for x
    x = 121,387,943,503,391,648/403,589,090.35
  6. Step 6: Final answer
    x = 300,771,121.93

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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.