Finding the Fourth Proportional to 53,146,248.21, 79,719,373.28 and 12,756,732.21
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Solution
The fourth proportional to 53,146,248.21, 79,719,373.28 and 12,756,732.21 is: 19,135,098.55
Step by Step Solution
- Step 1: Write the proportion equation
53,146,248.21 : 79,719,373.28 = 12,756,732.21 : x - Step 2: Convert to fraction form
53,146,248.21/79,719,373.28 = 12,756,732.21/x - Step 3: Cross multiply
53,146,248.21x = 79,719,373.28 × 12,756,732.21 - Step 4: Simplify right side
53,146,248.21x = 1,016,958,696,881,989.38 - Step 5: Solve for x
x = 1,016,958,696,881,989.38/53,146,248.21 - Step 6: Final answer
x = 19,135,098.55
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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.