Home / 81,685,811.40-114,647,114.10-81,685,811.40

Finding the Fourth Proportional to 81,685,811.40, 114,647,114.10 and 81,685,811.40

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Solution

The fourth proportional to 81,685,811.40, 114,647,114.10 and 81,685,811.40 is: 114,647,114.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,685,811.40 : 114,647,114.10 = 81,685,811.40 : x
  2. Step 2: Convert to fraction form
    81,685,811.40/114,647,114.10 = 81,685,811.40/x
  3. Step 3: Cross multiply
    81,685,811.40x = 114,647,114.10 × 81,685,811.40
  4. Step 4: Simplify right side
    81,685,811.40x = 9,365,042,539,926,880
  5. Step 5: Solve for x
    x = 9,365,042,539,926,880/81,685,811.40
  6. Step 6: Final answer
    x = 114,647,114.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.