Finding the Fourth Proportional to 1,163,911,990.99, 1,608,299,583.87 and 828,802,726.61
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Solution
The fourth proportional to 1,163,911,990.99, 1,608,299,583.87 and 828,802,726.61 is: 1,145,243,876.37
Step by Step Solution
- Step 1: Write the proportion equation
1,163,911,990.99 : 1,608,299,583.87 = 828,802,726.61 : x - Step 2: Convert to fraction form
1,163,911,990.99/1,608,299,583.87 = 828,802,726.61/x - Step 3: Cross multiply
1,163,911,990.99x = 1,608,299,583.87 × 828,802,726.61 - Step 4: Simplify right side
1,163,911,990.99x = 1,332,963,080,317,184,256 - Step 5: Solve for x
x = 1,332,963,080,317,184,256/1,163,911,990.99 - Step 6: Final answer
x = 1,145,243,876.37
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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.