Finding the Fourth Proportional to 19,946,720.10, 29,921,635.35 and 8,587,539.30
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Solution
The fourth proportional to 19,946,720.10, 29,921,635.35 and 8,587,539.30 is: 12,881,978.50
Step by Step Solution
- Step 1: Write the proportion equation
19,946,720.10 : 29,921,635.35 = 8,587,539.30 : x - Step 2: Convert to fraction form
19,946,720.10/29,921,635.35 = 8,587,539.30/x - Step 3: Cross multiply
19,946,720.10x = 29,921,635.35 × 8,587,539.30 - Step 4: Simplify right side
19,946,720.10x = 256,953,219,488,394.28 - Step 5: Solve for x
x = 256,953,219,488,394.28/19,946,720.10 - Step 6: Final answer
x = 12,881,978.50
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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.