Finding the Fourth Proportional to 19,937,479.83, 29,968,646.45 and 13,157,621.88
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Solution
The fourth proportional to 19,937,479.83, 29,968,646.45 and 13,157,621.88 is: 19,777,630.95
Step by Step Solution
- Step 1: Write the proportion equation
19,937,479.83 : 29,968,646.45 = 13,157,621.88 : x - Step 2: Convert to fraction form
19,937,479.83/29,968,646.45 = 13,157,621.88/x - Step 3: Cross multiply
19,937,479.83x = 29,968,646.45 × 13,157,621.88 - Step 4: Simplify right side
19,937,479.83x = 394,316,118,178,716.25 - Step 5: Solve for x
x = 394,316,118,178,716.25/19,937,479.83 - Step 6: Final answer
x = 19,777,630.95
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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.