Finding the Fourth Proportional to 21,325,574.39, 29,398,683.98 and 15,203,374.07
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Solution
The fourth proportional to 21,325,574.39, 29,398,683.98 and 15,203,374.07 is: 20,958,834.76
Step by Step Solution
- Step 1: Write the proportion equation
21,325,574.39 : 29,398,683.98 = 15,203,374.07 : x - Step 2: Convert to fraction form
21,325,574.39/29,398,683.98 = 15,203,374.07/x - Step 3: Cross multiply
21,325,574.39x = 29,398,683.98 × 15,203,374.07 - Step 4: Simplify right side
21,325,574.39x = 446,959,189,604,671.44 - Step 5: Solve for x
x = 446,959,189,604,671.44/21,325,574.39 - Step 6: Final answer
x = 20,958,834.76
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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.