Finding the Fourth Proportional to 98,681,117.08, 136,181,553.90 and 54,026,344.12
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Solution
The fourth proportional to 98,681,117.08, 136,181,553.90 and 54,026,344.12 is: 74,557,237.61
Step by Step Solution
- Step 1: Write the proportion equation
98,681,117.08 : 136,181,553.90 = 54,026,344.12 : x - Step 2: Convert to fraction form
98,681,117.08/136,181,553.90 = 54,026,344.12/x - Step 3: Cross multiply
98,681,117.08x = 136,181,553.90 × 54,026,344.12 - Step 4: Simplify right side
98,681,117.08x = 7,357,391,493,797,728 - Step 5: Solve for x
x = 7,357,391,493,797,728/98,681,117.08 - Step 6: Final answer
x = 74,557,237.61
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1.5x scale
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.