Finding the Fourth Proportional to 19,521,417.60, 26,940,549.12 and 11,258,407.68
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Solution
The fourth proportional to 19,521,417.60, 26,940,549.12 and 11,258,407.68 is: 15,537,175.19
Step by Step Solution
- Step 1: Write the proportion equation
19,521,417.60 : 26,940,549.12 = 11,258,407.68 : x - Step 2: Convert to fraction form
19,521,417.60/26,940,549.12 = 11,258,407.68/x - Step 3: Cross multiply
19,521,417.60x = 26,940,549.12 × 11,258,407.68 - Step 4: Simplify right side
19,521,417.60x = 303,307,685,116,025.25 - Step 5: Solve for x
x = 303,307,685,116,025.25/19,521,417.60 - Step 6: Final answer
x = 15,537,175.19
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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.