Finding the Fourth Proportional to 1,116,198,233.30, 1,540,500,239.27 and 640,074,926.99
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Solution
The fourth proportional to 1,116,198,233.30, 1,540,500,239.27 and 640,074,926.99 is: 883,387,510.18
Step by Step Solution
- Step 1: Write the proportion equation
1,116,198,233.30 : 1,540,500,239.27 = 640,074,926.99 : x - Step 2: Convert to fraction form
1,116,198,233.30/1,540,500,239.27 = 640,074,926.99/x - Step 3: Cross multiply
1,116,198,233.30x = 1,540,500,239.27 × 640,074,926.99 - Step 4: Simplify right side
1,116,198,233.30x = 986,035,578,184,243,456 - Step 5: Solve for x
x = 986,035,578,184,243,456/1,116,198,233.30 - Step 6: Final answer
x = 883,387,510.18
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1.5x scale
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.