Finding the Fourth Proportional to 425,787,953.76, 638,677,674.50 and 134,655,126.12
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Solution
The fourth proportional to 425,787,953.76, 638,677,674.50 and 134,655,126.12 is: 201,981,343.18
Step by Step Solution
- Step 1: Write the proportion equation
425,787,953.76 : 638,677,674.50 = 134,655,126.12 : x - Step 2: Convert to fraction form
425,787,953.76/638,677,674.50 = 134,655,126.12/x - Step 3: Cross multiply
425,787,953.76x = 638,677,674.50 × 134,655,126.12 - Step 4: Simplify right side
425,787,953.76x = 86,001,222,809,152,528 - Step 5: Solve for x
x = 86,001,222,809,152,528/425,787,953.76 - Step 6: Final answer
x = 201,981,343.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.