Finding the Fourth Proportional to 21,696,332.04, 29,938,959.25 and 12,874,263.08
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Solution
The fourth proportional to 21,696,332.04, 29,938,959.25 and 12,874,263.08 is: 17,765,308.76
Step by Step Solution
- Step 1: Write the proportion equation
21,696,332.04 : 29,938,959.25 = 12,874,263.08 : x - Step 2: Convert to fraction form
21,696,332.04/29,938,959.25 = 12,874,263.08/x - Step 3: Cross multiply
21,696,332.04x = 29,938,959.25 × 12,874,263.08 - Step 4: Simplify right side
21,696,332.04x = 385,442,037,544,019 - Step 5: Solve for x
x = 385,442,037,544,019/21,696,332.04 - Step 6: Final answer
x = 17,765,308.76
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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.