Finding the Fourth Proportional to 19,937,788.64, 29,969,110.08 and 13,157,930.72
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Solution
The fourth proportional to 19,937,788.64, 29,969,110.08 and 13,157,930.72 is: 19,778,094.82
Step by Step Solution
- Step 1: Write the proportion equation
19,937,788.64 : 29,969,110.08 = 13,157,930.72 : x - Step 2: Convert to fraction form
19,937,788.64/29,969,110.08 = 13,157,930.72/x - Step 3: Cross multiply
19,937,788.64x = 29,969,110.08 × 13,157,930.72 - Step 4: Simplify right side
19,937,788.64x = 394,331,474,172,693.62 - Step 5: Solve for x
x = 394,331,474,172,693.62/19,937,788.64 - Step 6: Final answer
x = 19,778,094.82
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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.