Home / 81,823,405.56-112,939,911.54-48,363,880.20

Finding the Fourth Proportional to 81,823,405.56, 112,939,911.54 and 48,363,880.20

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Solution

The fourth proportional to 81,823,405.56, 112,939,911.54 and 48,363,880.20 is: 66,756,111.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,823,405.56 : 112,939,911.54 = 48,363,880.20 : x
  2. Step 2: Convert to fraction form
    81,823,405.56/112,939,911.54 = 48,363,880.20/x
  3. Step 3: Cross multiply
    81,823,405.56x = 112,939,911.54 × 48,363,880.20
  4. Step 4: Simplify right side
    81,823,405.56x = 5,462,212,351,519,158
  5. Step 5: Solve for x
    x = 5,462,212,351,519,158/81,823,405.56
  6. Step 6: Final answer
    x = 66,756,111.09

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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.