Finding the Fourth Proportional to 13,291,420.84, 19,937,128.98 and 3,194,041.96
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Solution
The fourth proportional to 13,291,420.84, 19,937,128.98 and 3,194,041.96 is: 4,791,062.39
Step by Step Solution
- Step 1: Write the proportion equation
13,291,420.84 : 19,937,128.98 = 3,194,041.96 : x - Step 2: Convert to fraction form
13,291,420.84/19,937,128.98 = 3,194,041.96/x - Step 3: Cross multiply
13,291,420.84x = 19,937,128.98 × 3,194,041.96 - Step 4: Simplify right side
13,291,420.84x = 63,680,026,524,052 - Step 5: Solve for x
x = 63,680,026,524,052/13,291,420.84 - Step 6: Final answer
x = 4,791,062.39
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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.