Finding the Fourth Proportional to 18,438,394,976.58, 27,615,703,802.40 and 14,429,495,257.96
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Solution
The fourth proportional to 18,438,394,976.58, 27,615,703,802.40 and 14,429,495,257.96 is: 21,611,461,711.72
Step by Step Solution
- Step 1: Write the proportion equation
18,438,394,976.58 : 27,615,703,802.40 = 14,429,495,257.96 : x - Step 2: Convert to fraction form
18,438,394,976.58/27,615,703,802.40 = 14,429,495,257.96/x - Step 3: Cross multiply
18,438,394,976.58x = 27,615,703,802.40 × 14,429,495,257.96 - Step 4: Simplify right side
18,438,394,976.58x = 398,480,667,061,886,582,784 - Step 5: Solve for x
x = 398,480,667,061,886,582,784/18,438,394,976.58 - Step 6: Final answer
x = 21,611,461,711.72
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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.