Finding the Fourth Proportional to 913,113,655.12, 1,369,917,602.94 and 651,129,185.68
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Solution
The fourth proportional to 913,113,655.12, 1,369,917,602.94 and 651,129,185.68 is: 976,869,996.69
Step by Step Solution
- Step 1: Write the proportion equation
913,113,655.12 : 1,369,917,602.94 = 651,129,185.68 : x - Step 2: Convert to fraction form
913,113,655.12/1,369,917,602.94 = 651,129,185.68/x - Step 3: Cross multiply
913,113,655.12x = 1,369,917,602.94 × 651,129,185.68 - Step 4: Simplify right side
913,113,655.12x = 891,993,333,251,019,776 - Step 5: Solve for x
x = 891,993,333,251,019,776/913,113,655.12 - Step 6: Final answer
x = 976,869,996.69
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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.