Finding the Fourth Proportional to 39,528,813.60, 54,547,229.52 and 22,122,220.32
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Solution
The fourth proportional to 39,528,813.60, 54,547,229.52 and 22,122,220.32 is: 30,527,246.31
Step by Step Solution
- Step 1: Write the proportion equation
39,528,813.60 : 54,547,229.52 = 22,122,220.32 : x - Step 2: Convert to fraction form
39,528,813.60/54,547,229.52 = 22,122,220.32/x - Step 3: Cross multiply
39,528,813.60x = 54,547,229.52 × 22,122,220.32 - Step 4: Simplify right side
39,528,813.60x = 1,206,705,829,287,048 - Step 5: Solve for x
x = 1,206,705,829,287,048/39,528,813.60 - Step 6: Final answer
x = 30,527,246.31
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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.