Finding the Fourth Proportional to 703,163,270.49, 1,054,642,235.50 and 205,039,930.65
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Solution
The fourth proportional to 703,163,270.49, 1,054,642,235.50 and 205,039,930.65 is: 307,529,957.70
Step by Step Solution
- Step 1: Write the proportion equation
703,163,270.49 : 1,054,642,235.50 = 205,039,930.65 : x - Step 2: Convert to fraction form
703,163,270.49/1,054,642,235.50 = 205,039,930.65/x - Step 3: Cross multiply
703,163,270.49x = 1,054,642,235.50 × 205,039,930.65 - Step 4: Simplify right side
703,163,270.49x = 216,243,770,827,480,960 - Step 5: Solve for x
x = 216,243,770,827,480,960/703,163,270.49 - Step 6: Final answer
x = 307,529,957.70
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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.