Finding the Fourth Proportional to 19,574,641.40, 29,361,962.10 and 13,528,023.80
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Solution
The fourth proportional to 19,574,641.40, 29,361,962.10 and 13,528,023.80 is: 20,292,035.70
Step by Step Solution
- Step 1: Write the proportion equation
19,574,641.40 : 29,361,962.10 = 13,528,023.80 : x - Step 2: Convert to fraction form
19,574,641.40/29,361,962.10 = 13,528,023.80/x - Step 3: Cross multiply
19,574,641.40x = 29,361,962.10 × 13,528,023.80 - Step 4: Simplify right side
19,574,641.40x = 397,209,322,103,498 - Step 5: Solve for x
x = 397,209,322,103,498/19,574,641.40 - Step 6: Final answer
x = 20,292,035.70
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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.