Finding the Fourth Proportional to 21,701,865.04, 29,934,951.13 and 12,875,067.17
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Solution
The fourth proportional to 21,701,865.04, 29,934,951.13 and 12,875,067.17 is: 17,759,510.80
Step by Step Solution
- Step 1: Write the proportion equation
21,701,865.04 : 29,934,951.13 = 12,875,067.17 : x - Step 2: Convert to fraction form
21,701,865.04/29,934,951.13 = 12,875,067.17/x - Step 3: Cross multiply
21,701,865.04x = 29,934,951.13 × 12,875,067.17 - Step 4: Simplify right side
21,701,865.04x = 385,414,506,529,417.38 - Step 5: Solve for x
x = 385,414,506,529,417.38/21,701,865.04 - Step 6: Final answer
x = 17,759,510.80
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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.