Finding the Fourth Proportional to 29,720,900.43, 40,976,875.35 and 19,248,414.48
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Solution
The fourth proportional to 29,720,900.43, 40,976,875.35 and 19,248,414.48 is: 26,538,222.91
Step by Step Solution
- Step 1: Write the proportion equation
29,720,900.43 : 40,976,875.35 = 19,248,414.48 : x - Step 2: Convert to fraction form
29,720,900.43/40,976,875.35 = 19,248,414.48/x - Step 3: Cross multiply
29,720,900.43x = 40,976,875.35 × 19,248,414.48 - Step 4: Simplify right side
29,720,900.43x = 788,739,880,832,095.12 - Step 5: Solve for x
x = 788,739,880,832,095.12/29,720,900.43 - Step 6: Final answer
x = 26,538,222.91
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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.