Finding the Fourth Proportional to 10,781,299.71, 14,877,994.05 and 6,134,981.76
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Solution
The fourth proportional to 10,781,299.71, 14,877,994.05 and 6,134,981.76 is: 8,466,161.28
Step by Step Solution
- Step 1: Write the proportion equation
10,781,299.71 : 14,877,994.05 = 6,134,981.76 : x - Step 2: Convert to fraction form
10,781,299.71/14,877,994.05 = 6,134,981.76/x - Step 3: Cross multiply
10,781,299.71x = 14,877,994.05 × 6,134,981.76 - Step 4: Simplify right side
10,781,299.71x = 91,276,222,122,138.53 - Step 5: Solve for x
x = 91,276,222,122,138.53/10,781,299.71 - Step 6: Final answer
x = 8,466,161.28
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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.