Finding the Fourth Proportional to 19,822,862.85, 27,360,579.15 and 13,545,932.28
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Solution
The fourth proportional to 19,822,862.85, 27,360,579.15 and 13,545,932.28 is: 18,696,822.71
Step by Step Solution
- Step 1: Write the proportion equation
19,822,862.85 : 27,360,579.15 = 13,545,932.28 : x - Step 2: Convert to fraction form
19,822,862.85/27,360,579.15 = 13,545,932.28/x - Step 3: Cross multiply
19,822,862.85x = 27,360,579.15 × 13,545,932.28 - Step 4: Simplify right side
19,822,862.85x = 370,624,552,307,479.94 - Step 5: Solve for x
x = 370,624,552,307,479.94/19,822,862.85 - Step 6: Final answer
x = 18,696,822.71
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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.