Home / 81,916,616.96-113,042,772.96-45,246,400.64

Finding the Fourth Proportional to 81,916,616.96, 113,042,772.96 and 45,246,400.64

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Solution

The fourth proportional to 81,916,616.96, 113,042,772.96 and 45,246,400.64 is: 62,438,840.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,916,616.96 : 113,042,772.96 = 45,246,400.64 : x
  2. Step 2: Convert to fraction form
    81,916,616.96/113,042,772.96 = 45,246,400.64/x
  3. Step 3: Cross multiply
    81,916,616.96x = 113,042,772.96 × 45,246,400.64
  4. Step 4: Simplify right side
    81,916,616.96x = 5,114,778,594,804,718
  5. Step 5: Solve for x
    x = 5,114,778,594,804,718/81,916,616.96
  6. Step 6: Final answer
    x = 62,438,840.67

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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.