Finding the Fourth Proportional to 9,671,988.18, 13,347,343.60 and 5,320,981.11
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Solution
The fourth proportional to 9,671,988.18, 13,347,343.60 and 5,320,981.11 is: 7,342,953.88
Step by Step Solution
- Step 1: Write the proportion equation
9,671,988.18 : 13,347,343.60 = 5,320,981.11 : x - Step 2: Convert to fraction form
9,671,988.18/13,347,343.60 = 5,320,981.11/x - Step 3: Cross multiply
9,671,988.18x = 13,347,343.60 × 5,320,981.11 - Step 4: Simplify right side
9,671,988.18x = 71,020,963,164,279.41 - Step 5: Solve for x
x = 71,020,963,164,279.41/9,671,988.18 - Step 6: Final answer
x = 7,342,953.88
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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.