Home / 1,297,238,271.12-1,948,961,679.42-831,811,571.23

Finding the Fourth Proportional to 1,297,238,271.12, 1,948,961,679.42 and 831,811,571.23

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Solution

The fourth proportional to 1,297,238,271.12, 1,948,961,679.42 and 831,811,571.23 is: 1,249,707,870.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,238,271.12 : 1,948,961,679.42 = 831,811,571.23 : x
  2. Step 2: Convert to fraction form
    1,297,238,271.12/1,948,961,679.42 = 831,811,571.23/x
  3. Step 3: Cross multiply
    1,297,238,271.12x = 1,948,961,679.42 × 831,811,571.23
  4. Step 4: Simplify right side
    1,297,238,271.12x = 1,621,168,876,823,614,976
  5. Step 5: Solve for x
    x = 1,621,168,876,823,614,976/1,297,238,271.12
  6. Step 6: Final answer
    x = 1,249,707,870.11

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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.