Finding the Fourth Proportional to 25,009,805.70, 34,513,531.86 and 13,563,533.70
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Solution
The fourth proportional to 25,009,805.70, 34,513,531.86 and 13,563,533.70 is: 18,717,676.50
Step by Step Solution
- Step 1: Write the proportion equation
25,009,805.70 : 34,513,531.86 = 13,563,533.70 : x - Step 2: Convert to fraction form
25,009,805.70/34,513,531.86 = 13,563,533.70/x - Step 3: Cross multiply
25,009,805.70x = 34,513,531.86 × 13,563,533.70 - Step 4: Simplify right side
25,009,805.70x = 468,125,452,359,707.88 - Step 5: Solve for x
x = 468,125,452,359,707.88/25,009,805.70 - Step 6: Final answer
x = 18,717,676.50
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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.