Home / 1,917,248,812.20-2,875,873,218.30-987,439,638.60

Finding the Fourth Proportional to 1,917,248,812.20, 2,875,873,218.30 and 987,439,638.60

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Solution

The fourth proportional to 1,917,248,812.20, 2,875,873,218.30 and 987,439,638.60 is: 1,481,159,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,248,812.20 : 2,875,873,218.30 = 987,439,638.60 : x
  2. Step 2: Convert to fraction form
    1,917,248,812.20/2,875,873,218.30 = 987,439,638.60/x
  3. Step 3: Cross multiply
    1,917,248,812.20x = 2,875,873,218.30 × 987,439,638.60
  4. Step 4: Simplify right side
    1,917,248,812.20x = 2,839,751,211,337,571,328
  5. Step 5: Solve for x
    x = 2,839,751,211,337,571,328/1,917,248,812.20
  6. Step 6: Final answer
    x = 1,481,159,457.90

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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.