Finding the Fourth Proportional to 28,153,545.84, 38,852,492.40 and 15,930,402.84
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Solution
The fourth proportional to 28,153,545.84, 38,852,492.40 and 15,930,402.84 is: 21,984,294.94
Step by Step Solution
- Step 1: Write the proportion equation
28,153,545.84 : 38,852,492.40 = 15,930,402.84 : x - Step 2: Convert to fraction form
28,153,545.84/38,852,492.40 = 15,930,402.84/x - Step 3: Cross multiply
28,153,545.84x = 38,852,492.40 × 15,930,402.84 - Step 4: Simplify right side
28,153,545.84x = 618,935,855,270,038.38 - Step 5: Solve for x
x = 618,935,855,270,038.38/28,153,545.84 - Step 6: Final answer
x = 21,984,294.94
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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.