Home / 2,039,061,992.80-2,812,886,880.24-1,287,306,859.36

Finding the Fourth Proportional to 2,039,061,992.80, 2,812,886,880.24 and 1,287,306,859.36

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Solution

The fourth proportional to 2,039,061,992.80, 2,812,886,880.24 and 1,287,306,859.36 is: 1,775,840,356.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039,061,992.80 : 2,812,886,880.24 = 1,287,306,859.36 : x
  2. Step 2: Convert to fraction form
    2,039,061,992.80/2,812,886,880.24 = 1,287,306,859.36/x
  3. Step 3: Cross multiply
    2,039,061,992.80x = 2,812,886,880.24 × 1,287,306,859.36
  4. Step 4: Simplify right side
    2,039,061,992.80x = 3,621,048,575,536,702,464
  5. Step 5: Solve for x
    x = 3,621,048,575,536,702,464/2,039,061,992.80
  6. Step 6: Final answer
    x = 1,775,840,356.17

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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.