Finding the Fourth Proportional to 1,297,238,258.06, 1,948,961,659.14 and 831,811,558.28
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Solution
The fourth proportional to 1,297,238,258.06, 1,948,961,659.14 and 831,811,558.28 is: 1,249,707,850.23
Step by Step Solution
- Step 1: Write the proportion equation
1,297,238,258.06 : 1,948,961,659.14 = 831,811,558.28 : x - Step 2: Convert to fraction form
1,297,238,258.06/1,948,961,659.14 = 831,811,558.28/x - Step 3: Cross multiply
1,297,238,258.06x = 1,948,961,659.14 × 831,811,558.28 - Step 4: Simplify right side
1,297,238,258.06x = 1,621,168,834,717,217,536 - Step 5: Solve for x
x = 1,621,168,834,717,217,536/1,297,238,258.06 - Step 6: Final answer
x = 1,249,707,850.23
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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.