Finding the Fourth Proportional to 1,145,163,039.60, 1,718,248,444.20 and 531,431,353.20
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Solution
The fourth proportional to 1,145,163,039.60, 1,718,248,444.20 and 531,431,353.20 is: 797,380,865.66
Step by Step Solution
- Step 1: Write the proportion equation
1,145,163,039.60 : 1,718,248,444.20 = 531,431,353.20 : x - Step 2: Convert to fraction form
1,145,163,039.60/1,718,248,444.20 = 531,431,353.20/x - Step 3: Cross multiply
1,145,163,039.60x = 1,718,248,444.20 × 531,431,353.20 - Step 4: Simplify right side
1,145,163,039.60x = 913,131,095,835,000,704 - Step 5: Solve for x
x = 913,131,095,835,000,704/1,145,163,039.60 - Step 6: Final answer
x = 797,380,865.66
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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.