Finding the Fourth Proportional to 19,539,202.16, 29,271,809.64 and 13,042,688.72
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Solution
The fourth proportional to 19,539,202.16, 29,271,809.64 and 13,042,688.72 is: 19,539,339.34
Step by Step Solution
- Step 1: Write the proportion equation
19,539,202.16 : 29,271,809.64 = 13,042,688.72 : x - Step 2: Convert to fraction form
19,539,202.16/29,271,809.64 = 13,042,688.72/x - Step 3: Cross multiply
19,539,202.16x = 29,271,809.64 × 13,042,688.72 - Step 4: Simplify right side
19,539,202.16x = 381,783,101,405,615.31 - Step 5: Solve for x
x = 381,783,101,405,615.31/19,539,202.16 - Step 6: Final answer
x = 19,539,339.34
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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.