Finding the Fourth Proportional to 990,725,590.80, 1,484,812,927.80 and 759,548,755.80
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Solution
The fourth proportional to 990,725,590.80, 1,484,812,927.80 and 759,548,755.80 is: 1,138,345,291.95
Step by Step Solution
- Step 1: Write the proportion equation
990,725,590.80 : 1,484,812,927.80 = 759,548,755.80 : x - Step 2: Convert to fraction form
990,725,590.80/1,484,812,927.80 = 759,548,755.80/x - Step 3: Cross multiply
990,725,590.80x = 1,484,812,927.80 × 759,548,755.80 - Step 4: Simplify right side
990,725,590.80x = 1,127,787,811,906,245,120 - Step 5: Solve for x
x = 1,127,787,811,906,245,120/990,725,590.80 - Step 6: Final answer
x = 1,138,345,291.95
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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.