Finding the Fourth Proportional to 385,371,805.70, 577,889,746.95 and 155,264,413.70
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Solution
The fourth proportional to 385,371,805.70, 577,889,746.95 and 155,264,413.70 is: 232,828,949.64
Step by Step Solution
- Step 1: Write the proportion equation
385,371,805.70 : 577,889,746.95 = 155,264,413.70 : x - Step 2: Convert to fraction form
385,371,805.70/577,889,746.95 = 155,264,413.70/x - Step 3: Cross multiply
385,371,805.70x = 577,889,746.95 × 155,264,413.70 - Step 4: Simplify right side
385,371,805.70x = 89,725,712,743,433,120 - Step 5: Solve for x
x = 89,725,712,743,433,120/385,371,805.70 - Step 6: Final answer
x = 232,828,949.64
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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.