Finding the Fourth Proportional to 86,270,219.52, 129,406,473.36 and 28,762,509.12
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Solution
The fourth proportional to 86,270,219.52, 129,406,473.36 and 28,762,509.12 is: 43,144,145.12
Step by Step Solution
- Step 1: Write the proportion equation
86,270,219.52 : 129,406,473.36 = 28,762,509.12 : x - Step 2: Convert to fraction form
86,270,219.52/129,406,473.36 = 28,762,509.12/x - Step 3: Cross multiply
86,270,219.52x = 129,406,473.36 × 28,762,509.12 - Step 4: Simplify right side
86,270,219.52x = 3,722,054,870,204,037 - Step 5: Solve for x
x = 3,722,054,870,204,037/86,270,219.52 - Step 6: Final answer
x = 43,144,145.12
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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.