Finding the Fourth Proportional to 16,788,623.90, 25,182,935.85 and 5,430,220.70
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Solution
The fourth proportional to 16,788,623.90, 25,182,935.85 and 5,430,220.70 is: 8,145,331.05
Step by Step Solution
- Step 1: Write the proportion equation
16,788,623.90 : 25,182,935.85 = 5,430,220.70 : x - Step 2: Convert to fraction form
16,788,623.90/25,182,935.85 = 5,430,220.70/x - Step 3: Cross multiply
16,788,623.90x = 25,182,935.85 × 5,430,220.70 - Step 4: Simplify right side
16,788,623.90x = 136,748,899,539,442.11 - Step 5: Solve for x
x = 136,748,899,539,442.11/16,788,623.90 - Step 6: Final answer
x = 8,145,331.05
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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.