Finding the Fourth Proportional to 28,027,545.08, 38,677,958.56 and 15,636,901.26
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Solution
The fourth proportional to 28,027,545.08, 38,677,958.56 and 15,636,901.26 is: 21,578,893.82
Step by Step Solution
- Step 1: Write the proportion equation
28,027,545.08 : 38,677,958.56 = 15,636,901.26 : x - Step 2: Convert to fraction form
28,027,545.08/38,677,958.56 = 15,636,901.26/x - Step 3: Cross multiply
28,027,545.08x = 38,677,958.56 × 15,636,901.26 - Step 4: Simplify right side
28,027,545.08x = 604,803,419,105,680.25 - Step 5: Solve for x
x = 604,803,419,105,680.25/28,027,545.08 - Step 6: Final answer
x = 21,578,893.82
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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.