Finding the Fourth Proportional to 11,436,743.95, 15,782,980.86 and 6,209,972.39
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Solution
The fourth proportional to 11,436,743.95, 15,782,980.86 and 6,209,972.39 is: 8,569,910.79
Step by Step Solution
- Step 1: Write the proportion equation
11,436,743.95 : 15,782,980.86 = 6,209,972.39 : x - Step 2: Convert to fraction form
11,436,743.95/15,782,980.86 = 6,209,972.39/x - Step 3: Cross multiply
11,436,743.95x = 15,782,980.86 × 6,209,972.39 - Step 4: Simplify right side
11,436,743.95x = 98,011,875,411,955.91 - Step 5: Solve for x
x = 98,011,875,411,955.91/11,436,743.95 - Step 6: Final answer
x = 8,569,910.79
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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.