Home / 403,590,416.23-556,954,769.29-217,951,415.51

Finding the Fourth Proportional to 403,590,416.23, 556,954,769.29 and 217,951,415.51

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Solution

The fourth proportional to 403,590,416.23, 556,954,769.29 and 217,951,415.51 is: 300,772,950.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,416.23 : 556,954,769.29 = 217,951,415.51 : x
  2. Step 2: Convert to fraction form
    403,590,416.23/556,954,769.29 = 217,951,415.51/x
  3. Step 3: Cross multiply
    403,590,416.23x = 556,954,769.29 × 217,951,415.51
  4. Step 4: Simplify right side
    403,590,416.23x = 121,389,080,341,800,960
  5. Step 5: Solve for x
    x = 121,389,080,341,800,960/403,590,416.23
  6. Step 6: Final answer
    x = 300,772,950.65

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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.