Home / 312,066,812.16-430,655,365.44-188,283,571.20

Finding the Fourth Proportional to 312,066,812.16, 430,655,365.44 and 188,283,571.20

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Solution

The fourth proportional to 312,066,812.16, 430,655,365.44 and 188,283,571.20 is: 259,833,237.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,066,812.16 : 430,655,365.44 = 188,283,571.20 : x
  2. Step 2: Convert to fraction form
    312,066,812.16/430,655,365.44 = 188,283,571.20/x
  3. Step 3: Cross multiply
    312,066,812.16x = 430,655,365.44 × 188,283,571.20
  4. Step 4: Simplify right side
    312,066,812.16x = 81,085,330,161,484,256
  5. Step 5: Solve for x
    x = 81,085,330,161,484,256/312,066,812.16
  6. Step 6: Final answer
    x = 259,833,237.63

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.