Home / 403,590,406.60-556,954,756.01-217,951,405.89

Finding the Fourth Proportional to 403,590,406.60, 556,954,756.01 and 217,951,405.89

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Solution

The fourth proportional to 403,590,406.60, 556,954,756.01 and 217,951,405.89 is: 300,772,937.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,590,406.60 : 556,954,756.01 = 217,951,405.89 : x
  2. Step 2: Convert to fraction form
    403,590,406.60/556,954,756.01 = 217,951,405.89/x
  3. Step 3: Cross multiply
    403,590,406.60x = 556,954,756.01 × 217,951,405.89
  4. Step 4: Simplify right side
    403,590,406.60x = 121,389,072,089,501,424
  5. Step 5: Solve for x
    x = 121,389,072,089,501,424/403,590,406.60
  6. Step 6: Final answer
    x = 300,772,937.38

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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.