Finding the Fourth Proportional to 18,717,661.23, 28,073,870.58 and 6,421,420.48
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Solution
The fourth proportional to 18,717,661.23, 28,073,870.58 and 6,421,420.48 is: 9,631,231.45
Step by Step Solution
- Step 1: Write the proportion equation
18,717,661.23 : 28,073,870.58 = 6,421,420.48 : x - Step 2: Convert to fraction form
18,717,661.23/28,073,870.58 = 6,421,420.48/x - Step 3: Cross multiply
18,717,661.23x = 28,073,870.58 × 6,421,420.48 - Step 4: Simplify right side
18,717,661.23x = 180,274,127,495,281.47 - Step 5: Solve for x
x = 180,274,127,495,281.47/18,717,661.23 - Step 6: Final answer
x = 9,631,231.45
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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.