Finding the Fourth Proportional to 13,618,095.84, 18,792,967.68 and 7,506,626.40
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Solution
The fourth proportional to 13,618,095.84, 18,792,967.68 and 7,506,626.40 is: 10,359,141.91
Step by Step Solution
- Step 1: Write the proportion equation
13,618,095.84 : 18,792,967.68 = 7,506,626.40 : x - Step 2: Convert to fraction form
13,618,095.84/18,792,967.68 = 7,506,626.40/x - Step 3: Cross multiply
13,618,095.84x = 18,792,967.68 × 7,506,626.40 - Step 4: Simplify right side
13,618,095.84x = 141,071,787,321,034.75 - Step 5: Solve for x
x = 141,071,787,321,034.75/13,618,095.84 - Step 6: Final answer
x = 10,359,141.91
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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.