Home / 81,153,800,191.49-121,734,526,662.43-66,962,444,166.05

Finding the Fourth Proportional to 81,153,800,191.49, 121,734,526,662.43 and 66,962,444,166.05

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Solution

The fourth proportional to 81,153,800,191.49, 121,734,526,662.43 and 66,962,444,166.05 is: 100,446,823,506.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,153,800,191.49 : 121,734,526,662.43 = 66,962,444,166.05 : x
  2. Step 2: Convert to fraction form
    81,153,800,191.49/121,734,526,662.43 = 66,962,444,166.05/x
  3. Step 3: Cross multiply
    81,153,800,191.49x = 121,734,526,662.43 × 66,962,444,166.05
  4. Step 4: Simplify right side
    81,153,800,191.49x = 8,151,641,444,712,884,207,616
  5. Step 5: Solve for x
    x = 8,151,641,444,712,884,207,616/81,153,800,191.49
  6. Step 6: Final answer
    x = 100,446,823,506.46

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1.5x scale

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.