Finding the Fourth Proportional to 1,631,331,135.51, 2,251,506,956.81 and 962,439,711.49
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Solution
The fourth proportional to 1,631,331,135.51, 2,251,506,956.81 and 962,439,711.49 is: 1,328,326,088.29
Step by Step Solution
- Step 1: Write the proportion equation
1,631,331,135.51 : 2,251,506,956.81 = 962,439,711.49 : x - Step 2: Convert to fraction form
1,631,331,135.51/2,251,506,956.81 = 962,439,711.49/x - Step 3: Cross multiply
1,631,331,135.51x = 2,251,506,956.81 × 962,439,711.49 - Step 4: Simplify right side
1,631,331,135.51x = 2,166,939,705,935,814,144 - Step 5: Solve for x
x = 2,166,939,705,935,814,144/1,631,331,135.51 - Step 6: Final answer
x = 1,328,326,088.29
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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.