Finding the Fourth Proportional to 1,084,831,110.90, 1,497,385,539.09 and 708,545,223.72
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Solution
The fourth proportional to 1,084,831,110.90, 1,497,385,539.09 and 708,545,223.72 is: 978,000,502.69
Step by Step Solution
- Step 1: Write the proportion equation
1,084,831,110.90 : 1,497,385,539.09 = 708,545,223.72 : x - Step 2: Convert to fraction form
1,084,831,110.90/1,497,385,539.09 = 708,545,223.72/x - Step 3: Cross multiply
1,084,831,110.90x = 1,497,385,539.09 × 708,545,223.72 - Step 4: Simplify right side
1,084,831,110.90x = 1,060,965,371,789,616,896 - Step 5: Solve for x
x = 1,060,965,371,789,616,896/1,084,831,110.90 - Step 6: Final answer
x = 978,000,502.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.