Home / 403,590,405.60-556,954,754.63-217,951,404.89

Finding the Fourth Proportional to 403,590,405.60, 556,954,754.63 and 217,951,404.89

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Solution

The fourth proportional to 403,590,405.60, 556,954,754.63 and 217,951,404.89 is: 300,772,935.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,405.60 : 556,954,754.63 = 217,951,404.89 : x
  2. Step 2: Convert to fraction form
    403,590,405.60/556,954,754.63 = 217,951,404.89/x
  3. Step 3: Cross multiply
    403,590,405.60x = 556,954,754.63 × 217,951,404.89
  4. Step 4: Simplify right side
    403,590,405.60x = 121,389,071,227,899,200
  5. Step 5: Solve for x
    x = 121,389,071,227,899,200/403,590,405.60
  6. Step 6: Final answer
    x = 300,772,935.99

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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.