Home / 518,222,205.63-715,146,677.60-283,273,796.79

Finding the Fourth Proportional to 518,222,205.63, 715,146,677.60 and 283,273,796.79

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Solution

The fourth proportional to 518,222,205.63, 715,146,677.60 and 283,273,796.79 is: 390,917,858.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,222,205.63 : 715,146,677.60 = 283,273,796.79 : x
  2. Step 2: Convert to fraction form
    518,222,205.63/715,146,677.60 = 283,273,796.79/x
  3. Step 3: Cross multiply
    518,222,205.63x = 715,146,677.60 × 283,273,796.79
  4. Step 4: Simplify right side
    518,222,205.63x = 202,582,314,624,089,696
  5. Step 5: Solve for x
    x = 202,582,314,624,089,696/518,222,205.63
  6. Step 6: Final answer
    x = 390,917,858.06

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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.