Home / 1,212,436,862.41-1,818,647,662.15-652,462,465.30

Finding the Fourth Proportional to 1,212,436,862.41, 1,818,647,662.15 and 652,462,465.30

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Solution

The fourth proportional to 1,212,436,862.41, 1,818,647,662.15 and 652,462,465.30 is: 978,689,591.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,436,862.41 : 1,818,647,662.15 = 652,462,465.30 : x
  2. Step 2: Convert to fraction form
    1,212,436,862.41/1,818,647,662.15 = 652,462,465.30/x
  3. Step 3: Cross multiply
    1,212,436,862.41x = 1,818,647,662.15 × 652,462,465.30
  4. Step 4: Simplify right side
    1,212,436,862.41x = 1,186,599,337,158,470,400
  5. Step 5: Solve for x
    x = 1,186,599,337,158,470,400/1,212,436,862.41
  6. Step 6: Final answer
    x = 978,689,591.14

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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.