Finding the Fourth Proportional to 1,417,177,487.10, 2,125,766,230.65 and 1,279,427,979.90
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Solution
The fourth proportional to 1,417,177,487.10, 2,125,766,230.65 and 1,279,427,979.90 is: 1,919,141,969.85
Step by Step Solution
- Step 1: Write the proportion equation
1,417,177,487.10 : 2,125,766,230.65 = 1,279,427,979.90 : x - Step 2: Convert to fraction form
1,417,177,487.10/2,125,766,230.65 = 1,279,427,979.90/x - Step 3: Cross multiply
1,417,177,487.10x = 2,125,766,230.65 × 1,279,427,979.90 - Step 4: Simplify right side
1,417,177,487.10x = 2,719,764,794,220,167,168 - Step 5: Solve for x
x = 2,719,764,794,220,167,168/1,417,177,487.10 - Step 6: Final answer
x = 1,919,141,969.85
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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.