Finding the Fourth Proportional to 13,185,934.80, 19,778,902.20 and 8,881,262.70
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Solution
The fourth proportional to 13,185,934.80, 19,778,902.20 and 8,881,262.70 is: 13,321,894.05
Step by Step Solution
- Step 1: Write the proportion equation
13,185,934.80 : 19,778,902.20 = 8,881,262.70 : x - Step 2: Convert to fraction form
13,185,934.80/19,778,902.20 = 8,881,262.70/x - Step 3: Cross multiply
13,185,934.80x = 19,778,902.20 × 8,881,262.70 - Step 4: Simplify right side
13,185,934.80x = 175,661,626,355,807.91 - Step 5: Solve for x
x = 175,661,626,355,807.91/13,185,934.80 - Step 6: Final answer
x = 13,321,894.05
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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.