Finding the Fourth Proportional to 684,241,828.96, 944,273,639.28 and 386,877,683.44
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Solution
The fourth proportional to 684,241,828.96, 944,273,639.28 and 386,877,683.44 is: 533,902,463.48
Step by Step Solution
- Step 1: Write the proportion equation
684,241,828.96 : 944,273,639.28 = 386,877,683.44 : x - Step 2: Convert to fraction form
684,241,828.96/944,273,639.28 = 386,877,683.44/x - Step 3: Cross multiply
684,241,828.96x = 944,273,639.28 × 386,877,683.44 - Step 4: Simplify right side
684,241,828.96x = 365,318,398,098,104,576 - Step 5: Solve for x
x = 365,318,398,098,104,576/684,241,828.96 - Step 6: Final answer
x = 533,902,463.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.