Finding the Fourth Proportional to 1,248,552,471.95, 1,872,268,950.99 and 744,006,740.81
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Solution
The fourth proportional to 1,248,552,471.95, 1,872,268,950.99 and 744,006,740.81 is: 1,115,676,554.60
Step by Step Solution
- Step 1: Write the proportion equation
1,248,552,471.95 : 1,872,268,950.99 = 744,006,740.81 : x - Step 2: Convert to fraction form
1,248,552,471.95/1,872,268,950.99 = 744,006,740.81/x - Step 3: Cross multiply
1,248,552,471.95x = 1,872,268,950.99 × 744,006,740.81 - Step 4: Simplify right side
1,248,552,471.95x = 1,392,980,720,139,218,944 - Step 5: Solve for x
x = 1,392,980,720,139,218,944/1,248,552,471.95 - Step 6: Final answer
x = 1,115,676,554.60
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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.