Finding the Fourth Proportional to 1,087,964,566.99, 1,501,396,186.84 and 618,091,671.14
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Solution
The fourth proportional to 1,087,964,566.99, 1,501,396,186.84 and 618,091,671.14 is: 852,969,394.71
Step by Step Solution
- Step 1: Write the proportion equation
1,087,964,566.99 : 1,501,396,186.84 = 618,091,671.14 : x - Step 2: Convert to fraction form
1,087,964,566.99/1,501,396,186.84 = 618,091,671.14/x - Step 3: Cross multiply
1,087,964,566.99x = 1,501,396,186.84 × 618,091,671.14 - Step 4: Simplify right side
1,087,964,566.99x = 928,000,478,167,901,056 - Step 5: Solve for x
x = 928,000,478,167,901,056/1,087,964,566.99 - Step 6: Final answer
x = 852,969,394.71
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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.