Finding the Fourth Proportional to 121,637,718.84, 167,872,092.30 and 69,434,605.56
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Solution
The fourth proportional to 121,637,718.84, 167,872,092.30 and 69,434,605.56 is: 95,826,628.65
Step by Step Solution
- Step 1: Write the proportion equation
121,637,718.84 : 167,872,092.30 = 69,434,605.56 : x - Step 2: Convert to fraction form
121,637,718.84/167,872,092.30 = 69,434,605.56/x - Step 3: Cross multiply
121,637,718.84x = 167,872,092.30 × 69,434,605.56 - Step 4: Simplify right side
121,637,718.84x = 11,656,132,513,382,414 - Step 5: Solve for x
x = 11,656,132,513,382,414/121,637,718.84 - Step 6: Final answer
x = 95,826,628.65
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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.