Finding the Fourth Proportional to 155,443,631.94, 214,513,251.30 and 84,879,732.42
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Solution
The fourth proportional to 155,443,631.94, 214,513,251.30 and 84,879,732.42 is: 117,134,598.21
Step by Step Solution
- Step 1: Write the proportion equation
155,443,631.94 : 214,513,251.30 = 84,879,732.42 : x - Step 2: Convert to fraction form
155,443,631.94/214,513,251.30 = 84,879,732.42/x - Step 3: Cross multiply
155,443,631.94x = 214,513,251.30 × 84,879,732.42 - Step 4: Simplify right side
155,443,631.94x = 18,207,827,370,888,220 - Step 5: Solve for x
x = 18,207,827,370,888,220/155,443,631.94 - Step 6: Final answer
x = 117,134,598.21
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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.