Finding the Fourth Proportional to 2,909,052,859.05, 4,363,579,346.49 and 698,262,572.61
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Solution
The fourth proportional to 2,909,052,859.05, 4,363,579,346.49 and 698,262,572.61 is: 1,047,393,872.82
Step by Step Solution
- Step 1: Write the proportion equation
2,909,052,859.05 : 4,363,579,346.49 = 698,262,572.61 : x - Step 2: Convert to fraction form
2,909,052,859.05/4,363,579,346.49 = 698,262,572.61/x - Step 3: Cross multiply
2,909,052,859.05x = 4,363,579,346.49 × 698,262,572.61 - Step 4: Simplify right side
2,909,052,859.05x = 3,046,924,140,267,970,048 - Step 5: Solve for x
x = 3,046,924,140,267,970,048/2,909,052,859.05 - Step 6: Final answer
x = 1,047,393,872.82
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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.