Finding the Fourth Proportional to 13,506,827.95, 18,641,281.31 and 8,282,959.75
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Solution
The fourth proportional to 13,506,827.95, 18,641,281.31 and 8,282,959.75 is: 11,431,624.31
Step by Step Solution
- Step 1: Write the proportion equation
13,506,827.95 : 18,641,281.31 = 8,282,959.75 : x - Step 2: Convert to fraction form
13,506,827.95/18,641,281.31 = 8,282,959.75/x - Step 3: Cross multiply
13,506,827.95x = 18,641,281.31 × 8,282,959.75 - Step 4: Simplify right side
13,506,827.95x = 154,404,982,779,157.25 - Step 5: Solve for x
x = 154,404,982,779,157.25/13,506,827.95 - Step 6: Final answer
x = 11,431,624.31
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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.