Finding the Fourth Proportional to 121,085,461.70, 181,628,192.55 and 84,734,897.30
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Solution
The fourth proportional to 121,085,461.70, 181,628,192.55 and 84,734,897.30 is: 127,102,345.95
Step by Step Solution
- Step 1: Write the proportion equation
121,085,461.70 : 181,628,192.55 = 84,734,897.30 : x - Step 2: Convert to fraction form
121,085,461.70/181,628,192.55 = 84,734,897.30/x - Step 3: Cross multiply
121,085,461.70x = 181,628,192.55 × 84,734,897.30 - Step 4: Simplify right side
121,085,461.70x = 15,390,246,242,508,876 - Step 5: Solve for x
x = 15,390,246,242,508,876/121,085,461.70 - Step 6: Final answer
x = 127,102,345.95
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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.