Finding the Fourth Proportional to 38,852,421.20, 58,278,631.80 and 18,697,029.20
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Solution
The fourth proportional to 38,852,421.20, 58,278,631.80 and 18,697,029.20 is: 28,045,543.80
Step by Step Solution
- Step 1: Write the proportion equation
38,852,421.20 : 58,278,631.80 = 18,697,029.20 : x - Step 2: Convert to fraction form
38,852,421.20/58,278,631.80 = 18,697,029.20/x - Step 3: Cross multiply
38,852,421.20x = 58,278,631.80 × 18,697,029.20 - Step 4: Simplify right side
38,852,421.20x = 1,089,637,280,500,648.50 - Step 5: Solve for x
x = 1,089,637,280,500,648.50/38,852,421.20 - Step 6: Final answer
x = 28,045,543.80
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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.