Finding the Fourth Proportional to 156,930,437.70, 235,289,368.35 and 80,190,357.30
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Solution
The fourth proportional to 156,930,437.70, 235,289,368.35 and 80,190,357.30 is: 120,231,223.42
Step by Step Solution
- Step 1: Write the proportion equation
156,930,437.70 : 235,289,368.35 = 80,190,357.30 : x - Step 2: Convert to fraction form
156,930,437.70/235,289,368.35 = 80,190,357.30/x - Step 3: Cross multiply
156,930,437.70x = 235,289,368.35 × 80,190,357.30 - Step 4: Simplify right side
156,930,437.70x = 18,867,938,516,877,812 - Step 5: Solve for x
x = 18,867,938,516,877,812/156,930,437.70 - Step 6: Final answer
x = 120,231,223.42
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.