Home / 81,082,650,643.20-121,623,975,964.80-81,082,650,643.20

Finding the Fourth Proportional to 81,082,650,643.20, 121,623,975,964.80 and 81,082,650,643.20

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Solution

The fourth proportional to 81,082,650,643.20, 121,623,975,964.80 and 81,082,650,643.20 is: 121,623,975,964.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,082,650,643.20 : 121,623,975,964.80 = 81,082,650,643.20 : x
  2. Step 2: Convert to fraction form
    81,082,650,643.20/121,623,975,964.80 = 81,082,650,643.20/x
  3. Step 3: Cross multiply
    81,082,650,643.20x = 121,623,975,964.80 × 81,082,650,643.20
  4. Step 4: Simplify right side
    81,082,650,643.20x = 9,861,594,352,990,830,985,216
  5. Step 5: Solve for x
    x = 9,861,594,352,990,830,985,216/81,082,650,643.20
  6. Step 6: Final answer
    x = 121,623,975,964.80

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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.