Finding the Fourth Proportional to 139,968,125.70, 209,952,188.55 and 136,188,989.70
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Solution
The fourth proportional to 139,968,125.70, 209,952,188.55 and 136,188,989.70 is: 204,283,484.55
Step by Step Solution
- Step 1: Write the proportion equation
139,968,125.70 : 209,952,188.55 = 136,188,989.70 : x - Step 2: Convert to fraction form
139,968,125.70/209,952,188.55 = 136,188,989.70/x - Step 3: Cross multiply
139,968,125.70x = 209,952,188.55 × 136,188,989.70 - Step 4: Simplify right side
139,968,125.70x = 28,593,176,443,928,408 - Step 5: Solve for x
x = 28,593,176,443,928,408/139,968,125.70 - Step 6: Final answer
x = 204,283,484.55
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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.