Home / 438,501,083.66-657,536,391.54-216,916,405.73

Finding the Fourth Proportional to 438,501,083.66, 657,536,391.54 and 216,916,405.73

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Solution

The fourth proportional to 438,501,083.66, 657,536,391.54 and 216,916,405.73 is: 325,268,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,501,083.66 : 657,536,391.54 = 216,916,405.73 : x
  2. Step 2: Convert to fraction form
    438,501,083.66/657,536,391.54 = 216,916,405.73/x
  3. Step 3: Cross multiply
    438,501,083.66x = 657,536,391.54 × 216,916,405.73
  4. Step 4: Simplify right side
    438,501,083.66x = 142,630,430,686,243,088
  5. Step 5: Solve for x
    x = 142,630,430,686,243,088/438,501,083.66
  6. Step 6: Final answer
    x = 325,268,137.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.