Finding the Fourth Proportional to 490,615,137.06, 736,249,972.20 and 254,482,286.70
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Solution
The fourth proportional to 490,615,137.06, 736,249,972.20 and 254,482,286.70 is: 381,893,183.38
Step by Step Solution
- Step 1: Write the proportion equation
490,615,137.06 : 736,249,972.20 = 254,482,286.70 : x - Step 2: Convert to fraction form
490,615,137.06/736,249,972.20 = 254,482,286.70/x - Step 3: Cross multiply
490,615,137.06x = 736,249,972.20 × 254,482,286.70 - Step 4: Simplify right side
490,615,137.06x = 187,362,576,508,267,424 - Step 5: Solve for x
x = 187,362,576,508,267,424/490,615,137.06 - Step 6: Final answer
x = 381,893,183.38
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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.