Finding the Fourth Proportional to 1,361,498,539.44, 1,879,735,490.71 and 1,111,199,979.81
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Solution
The fourth proportional to 1,361,498,539.44, 1,879,735,490.71 and 1,111,199,979.81 is: 1,534,163,995.65
Step by Step Solution
- Step 1: Write the proportion equation
1,361,498,539.44 : 1,879,735,490.71 = 1,111,199,979.81 : x - Step 2: Convert to fraction form
1,361,498,539.44/1,879,735,490.71 = 1,111,199,979.81/x - Step 3: Cross multiply
1,361,498,539.44x = 1,879,735,490.71 × 1,111,199,979.81 - Step 4: Simplify right side
1,361,498,539.44x = 2,088,762,039,325,861,376 - Step 5: Solve for x
x = 2,088,762,039,325,861,376/1,361,498,539.44 - Step 6: Final answer
x = 1,534,163,995.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.