Finding the Fourth Proportional to 10,292,156.16, 14,204,875.68 and 5,709,953.76
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Solution
The fourth proportional to 10,292,156.16, 14,204,875.68 and 5,709,953.76 is: 7,880,679.43
Step by Step Solution
- Step 1: Write the proportion equation
10,292,156.16 : 14,204,875.68 = 5,709,953.76 : x - Step 2: Convert to fraction form
10,292,156.16/14,204,875.68 = 5,709,953.76/x - Step 3: Cross multiply
10,292,156.16x = 14,204,875.68 × 5,709,953.76 - Step 4: Simplify right side
10,292,156.16x = 81,109,183,299,348.55 - Step 5: Solve for x
x = 81,109,183,299,348.55/10,292,156.16 - Step 6: Final answer
x = 7,880,679.43
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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.