Finding the Fourth Proportional to 18,139,545.84, 27,209,149.88 and 7,354,283.06
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Solution
The fourth proportional to 18,139,545.84, 27,209,149.88 and 7,354,283.06 is: 11,031,356.11
Step by Step Solution
- Step 1: Write the proportion equation
18,139,545.84 : 27,209,149.88 = 7,354,283.06 : x - Step 2: Convert to fraction form
18,139,545.84/27,209,149.88 = 7,354,283.06/x - Step 3: Cross multiply
18,139,545.84x = 27,209,149.88 × 7,354,283.06 - Step 4: Simplify right side
18,139,545.84x = 200,103,789,866,667.88 - Step 5: Solve for x
x = 200,103,789,866,667.88/18,139,545.84 - Step 6: Final answer
x = 11,031,356.11
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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.