Finding the Fourth Proportional to 2,021,890,221.30, 3,032,835,331.95 and 1,320,482,579.70
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Solution
The fourth proportional to 2,021,890,221.30, 3,032,835,331.95 and 1,320,482,579.70 is: 1,980,723,869.55
Step by Step Solution
- Step 1: Write the proportion equation
2,021,890,221.30 : 3,032,835,331.95 = 1,320,482,579.70 : x - Step 2: Convert to fraction form
2,021,890,221.30/3,032,835,331.95 = 1,320,482,579.70/x - Step 3: Cross multiply
2,021,890,221.30x = 3,032,835,331.95 × 1,320,482,579.70 - Step 4: Simplify right side
2,021,890,221.30x = 4,004,806,222,938,641,920 - Step 5: Solve for x
x = 4,004,806,222,938,641,920/2,021,890,221.30 - Step 6: Final answer
x = 1,980,723,869.55
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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.