Finding the Fourth Proportional to 232,578,775.13, 320,965,555.98 and 128,163,572.48
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Solution
The fourth proportional to 232,578,775.13, 320,965,555.98 and 128,163,572.48 is: 176,869,502.70
Step by Step Solution
- Step 1: Write the proportion equation
232,578,775.13 : 320,965,555.98 = 128,163,572.48 : x - Step 2: Convert to fraction form
232,578,775.13/320,965,555.98 = 128,163,572.48/x - Step 3: Cross multiply
232,578,775.13x = 320,965,555.98 × 128,163,572.48 - Step 4: Simplify right side
232,578,775.13x = 41,136,092,295,821,400 - Step 5: Solve for x
x = 41,136,092,295,821,400/232,578,775.13 - Step 6: Final answer
x = 176,869,502.70
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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.