Finding the Fourth Proportional to 4,779,615.35, 7,169,416.51 and 2,219,430.32
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Solution
The fourth proportional to 4,779,615.35, 7,169,416.51 and 2,219,430.32 is: 3,329,142.45
Step by Step Solution
- Step 1: Write the proportion equation
4,779,615.35 : 7,169,416.51 = 2,219,430.32 : x - Step 2: Convert to fraction form
4,779,615.35/7,169,416.51 = 2,219,430.32/x - Step 3: Cross multiply
4,779,615.35x = 7,169,416.51 × 2,219,430.32 - Step 4: Simplify right side
4,779,615.35x = 15,912,020,379,002.58 - Step 5: Solve for x
x = 15,912,020,379,002.58/4,779,615.35 - Step 6: Final answer
x = 3,329,142.45
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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.