Finding the Fourth Proportional to 209,968,271.05, 314,952,406.58 and 133,346,288.65
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Solution
The fourth proportional to 209,968,271.05, 314,952,406.58 and 133,346,288.65 is: 200,019,432.98
Step by Step Solution
- Step 1: Write the proportion equation
209,968,271.05 : 314,952,406.58 = 133,346,288.65 : x - Step 2: Convert to fraction form
209,968,271.05/314,952,406.58 = 133,346,288.65/x - Step 3: Cross multiply
209,968,271.05x = 314,952,406.58 × 133,346,288.65 - Step 4: Simplify right side
209,968,271.05x = 41,997,734,518,828,840 - Step 5: Solve for x
x = 41,997,734,518,828,840/209,968,271.05 - Step 6: Final answer
x = 200,019,432.98
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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.