Finding the Fourth Proportional to 459,664,605.70, 689,496,908.55 and 402,268,977.70
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Solution
The fourth proportional to 459,664,605.70, 689,496,908.55 and 402,268,977.70 is: 603,403,466.55
Step by Step Solution
- Step 1: Write the proportion equation
459,664,605.70 : 689,496,908.55 = 402,268,977.70 : x - Step 2: Convert to fraction form
459,664,605.70/689,496,908.55 = 402,268,977.70/x - Step 3: Cross multiply
459,664,605.70x = 689,496,908.55 × 402,268,977.70 - Step 4: Simplify right side
459,664,605.70x = 277,363,216,529,718,848 - Step 5: Solve for x
x = 277,363,216,529,718,848/459,664,605.70 - Step 6: Final answer
x = 603,403,466.55
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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.