Finding the Fourth Proportional to 275,264,807.70, 412,897,211.55 and 93,511,985.70
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Solution
The fourth proportional to 275,264,807.70, 412,897,211.55 and 93,511,985.70 is: 140,267,978.55
Step by Step Solution
- Step 1: Write the proportion equation
275,264,807.70 : 412,897,211.55 = 93,511,985.70 : x - Step 2: Convert to fraction form
275,264,807.70/412,897,211.55 = 93,511,985.70/x - Step 3: Cross multiply
275,264,807.70x = 412,897,211.55 × 93,511,985.70 - Step 4: Simplify right side
275,264,807.70x = 38,610,838,142,033,480 - Step 5: Solve for x
x = 38,610,838,142,033,480/275,264,807.70 - Step 6: Final answer
x = 140,267,978.55
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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.