Finding the Fourth Proportional to 1,248,552,471.41, 1,872,268,950.15 and 744,006,740.25
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Solution
The fourth proportional to 1,248,552,471.41, 1,872,268,950.15 and 744,006,740.25 is: 1,115,676,553.75
Step by Step Solution
- Step 1: Write the proportion equation
1,248,552,471.41 : 1,872,268,950.15 = 744,006,740.25 : x - Step 2: Convert to fraction form
1,248,552,471.41/1,872,268,950.15 = 744,006,740.25/x - Step 3: Cross multiply
1,248,552,471.41x = 1,872,268,950.15 × 744,006,740.25 - Step 4: Simplify right side
1,248,552,471.41x = 1,392,980,718,472,391,424 - Step 5: Solve for x
x = 1,392,980,718,472,391,424/1,248,552,471.41 - Step 6: Final answer
x = 1,115,676,553.75
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1.5x scale
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.