Home / 1,226,695,800,790.50-1,840,081,187,144.70-420,851,437,623.79

Finding the Fourth Proportional to 1,226,695,800,790.50, 1,840,081,187,144.70 and 420,851,437,623.79

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Solution

The fourth proportional to 1,226,695,800,790.50, 1,840,081,187,144.70 and 420,851,437,623.79 is: 631,290,017,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,695,800,790.50 : 1,840,081,187,144.70 = 420,851,437,623.79 : x
  2. Step 2: Convert to fraction form
    1,226,695,800,790.50/1,840,081,187,144.70 = 420,851,437,623.79/x
  3. Step 3: Cross multiply
    1,226,695,800,790.50x = 1,840,081,187,144.70 × 420,851,437,623.79
  4. Step 4: Simplify right side
    1,226,695,800,790.50x = 774,400,812,954,337,142,636,544
  5. Step 5: Solve for x
    x = 774,400,812,954,337,142,636,544/1,226,695,800,790.50
  6. Step 6: Final answer
    x = 631,290,017,015.88

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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.