Finding the Fourth Proportional to 8,919,302.18, 12,308,430.48 and 5,197,895.96
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Solution
The fourth proportional to 8,919,302.18, 12,308,430.48 and 5,197,895.96 is: 7,172,976.07
Step by Step Solution
- Step 1: Write the proportion equation
8,919,302.18 : 12,308,430.48 = 5,197,895.96 : x - Step 2: Convert to fraction form
8,919,302.18/12,308,430.48 = 5,197,895.96/x - Step 3: Cross multiply
8,919,302.18x = 12,308,430.48 × 5,197,895.96 - Step 4: Simplify right side
8,919,302.18x = 63,977,941,065,932.86 - Step 5: Solve for x
x = 63,977,941,065,932.86/8,919,302.18 - Step 6: Final answer
x = 7,172,976.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.