Home / 2,115,873,991.80-3,172,980,510.90-805,079,892.60

Finding the Fourth Proportional to 2,115,873,991.80, 3,172,980,510.90 and 805,079,892.60

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Solution

The fourth proportional to 2,115,873,991.80, 3,172,980,510.90 and 805,079,892.60 is: 1,207,303,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,873,991.80 : 3,172,980,510.90 = 805,079,892.60 : x
  2. Step 2: Convert to fraction form
    2,115,873,991.80/3,172,980,510.90 = 805,079,892.60/x
  3. Step 3: Cross multiply
    2,115,873,991.80x = 3,172,980,510.90 × 805,079,892.60
  4. Step 4: Simplify right side
    2,115,873,991.80x = 2,554,502,808,937,265,152
  5. Step 5: Solve for x
    x = 2,554,502,808,937,265,152/2,115,873,991.80
  6. Step 6: Final answer
    x = 1,207,303,846.47

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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.