Home / 81,913,802.56-122,889,030.72-30,796,264.32

Finding the Fourth Proportional to 81,913,802.56, 122,889,030.72 and 30,796,264.32

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Solution

The fourth proportional to 81,913,802.56, 122,889,030.72 and 30,796,264.32 is: 46,201,286.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,913,802.56 : 122,889,030.72 = 30,796,264.32 : x
  2. Step 2: Convert to fraction form
    81,913,802.56/122,889,030.72 = 30,796,264.32/x
  3. Step 3: Cross multiply
    81,913,802.56x = 122,889,030.72 × 30,796,264.32
  4. Step 4: Simplify right side
    81,913,802.56x = 3,784,523,072,081,720
  5. Step 5: Solve for x
    x = 3,784,523,072,081,720/81,913,802.56
  6. Step 6: Final answer
    x = 46,201,286.64

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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.