Finding the Fourth Proportional to 459,664,280.70, 689,496,421.05 and 402,268,652.70
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Solution
The fourth proportional to 459,664,280.70, 689,496,421.05 and 402,268,652.70 is: 603,402,979.05
Step by Step Solution
- Step 1: Write the proportion equation
459,664,280.70 : 689,496,421.05 = 402,268,652.70 : x - Step 2: Convert to fraction form
459,664,280.70/689,496,421.05 = 402,268,652.70/x - Step 3: Cross multiply
459,664,280.70x = 689,496,421.05 × 402,268,652.70 - Step 4: Simplify right side
459,664,280.70x = 277,362,796,337,255,392 - Step 5: Solve for x
x = 277,362,796,337,255,392/459,664,280.70 - Step 6: Final answer
x = 603,402,979.05
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1.5x scale
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.