Finding the Fourth Proportional to 13,282,630.95, 18,323,768.01 and 7,772,625.75
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Solution
The fourth proportional to 13,282,630.95, 18,323,768.01 and 7,772,625.75 is: 10,722,558.78
Step by Step Solution
- Step 1: Write the proportion equation
13,282,630.95 : 18,323,768.01 = 7,772,625.75 : x - Step 2: Convert to fraction form
13,282,630.95/18,323,768.01 = 7,772,625.75/x - Step 3: Cross multiply
13,282,630.95x = 18,323,768.01 × 7,772,625.75 - Step 4: Simplify right side
13,282,630.95x = 142,423,791,071,552.28 - Step 5: Solve for x
x = 142,423,791,071,552.28/13,282,630.95 - Step 6: Final answer
x = 10,722,558.78
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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.