Finding the Fourth Proportional to 19,521,638.40, 29,282,457.60 and 5,338,214.40
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Solution
The fourth proportional to 19,521,638.40, 29,282,457.60 and 5,338,214.40 is: 8,007,321.60
Step by Step Solution
- Step 1: Write the proportion equation
19,521,638.40 : 29,282,457.60 = 5,338,214.40 : x - Step 2: Convert to fraction form
19,521,638.40/29,282,457.60 = 5,338,214.40/x - Step 3: Cross multiply
19,521,638.40x = 29,282,457.60 × 5,338,214.40 - Step 4: Simplify right side
19,521,638.40x = 156,316,036,827,709.47 - Step 5: Solve for x
x = 156,316,036,827,709.47/19,521,638.40 - Step 6: Final answer
x = 8,007,321.60
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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.