Finding the Fourth Proportional to 124,871,821,516.52, 172,318,655,064.12 and 70,677,206,578.09
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Solution
The fourth proportional to 124,871,821,516.52, 172,318,655,064.12 and 70,677,206,578.09 is: 97,532,021,502.66
Step by Step Solution
- Step 1: Write the proportion equation
124,871,821,516.52 : 172,318,655,064.12 = 70,677,206,578.09 : x - Step 2: Convert to fraction form
124,871,821,516.52/172,318,655,064.12 = 70,677,206,578.09/x - Step 3: Cross multiply
124,871,821,516.52x = 172,318,655,064.12 × 70,677,206,578.09 - Step 4: Simplify right side
124,871,821,516.52x = 12,179,001,181,225,787,326,464 - Step 5: Solve for x
x = 12,179,001,181,225,787,326,464/124,871,821,516.52 - Step 6: Final answer
x = 97,532,021,502.66
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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.