Finding the Fourth Proportional to 19,251,646.19, 28,858,026.83 and 12,068,215.06
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Solution
The fourth proportional to 19,251,646.19, 28,858,026.83 and 12,068,215.06 is: 18,090,134.75
Step by Step Solution
- Step 1: Write the proportion equation
19,251,646.19 : 28,858,026.83 = 12,068,215.06 : x - Step 2: Convert to fraction form
19,251,646.19/28,858,026.83 = 12,068,215.06/x - Step 3: Cross multiply
19,251,646.19x = 28,858,026.83 × 12,068,215.06 - Step 4: Simplify right side
19,251,646.19x = 348,264,873,859,203.88 - Step 5: Solve for x
x = 348,264,873,859,203.88/19,251,646.19 - Step 6: Final answer
x = 18,090,134.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.