Home / 1,297,238,366.22-1,948,961,821.78-831,811,665.96

Finding the Fourth Proportional to 1,297,238,366.22, 1,948,961,821.78 and 831,811,665.96

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Solution

The fourth proportional to 1,297,238,366.22, 1,948,961,821.78 and 831,811,665.96 is: 1,249,708,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,238,366.22 : 1,948,961,821.78 = 831,811,665.96 : x
  2. Step 2: Convert to fraction form
    1,297,238,366.22/1,948,961,821.78 = 831,811,665.96/x
  3. Step 3: Cross multiply
    1,297,238,366.22x = 1,948,961,821.78 × 831,811,665.96
  4. Step 4: Simplify right side
    1,297,238,366.22x = 1,621,169,179,867,258,368
  5. Step 5: Solve for x
    x = 1,621,169,179,867,258,368/1,297,238,366.22
  6. Step 6: Final answer
    x = 1,249,708,012.10

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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.