Finding the Fourth Proportional to 1,779,121,471.82, 2,666,800,618.63 and 657,924,672.02
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Solution
The fourth proportional to 1,779,121,471.82, 2,666,800,618.63 and 657,924,672.02 is: 986,191,190.50
Step by Step Solution
- Step 1: Write the proportion equation
1,779,121,471.82 : 2,666,800,618.63 = 657,924,672.02 : x - Step 2: Convert to fraction form
1,779,121,471.82/2,666,800,618.63 = 657,924,672.02/x - Step 3: Cross multiply
1,779,121,471.82x = 2,666,800,618.63 × 657,924,672.02 - Step 4: Simplify right side
1,779,121,471.82x = 1,754,553,922,339,897,088 - Step 5: Solve for x
x = 1,754,553,922,339,897,088/1,779,121,471.82 - Step 6: Final answer
x = 986,191,190.50
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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.