Finding the Fourth Proportional to 238,787,416.80, 358,181,125.20 and 186,831,295.20
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Solution
The fourth proportional to 238,787,416.80, 358,181,125.20 and 186,831,295.20 is: 280,246,942.80
Step by Step Solution
- Step 1: Write the proportion equation
238,787,416.80 : 358,181,125.20 = 186,831,295.20 : x - Step 2: Convert to fraction form
238,787,416.80/358,181,125.20 = 186,831,295.20/x - Step 3: Cross multiply
238,787,416.80x = 358,181,125.20 × 186,831,295.20 - Step 4: Simplify right side
238,787,416.80x = 66,919,443,537,309,352 - Step 5: Solve for x
x = 66,919,443,537,309,352/238,787,416.80 - Step 6: Final answer
x = 280,246,942.80
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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.