Finding the Fourth Proportional to 11,878,372.74, 16,392,154.77 and 6,445,864.74
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Solution
The fourth proportional to 11,878,372.74, 16,392,154.77 and 6,445,864.74 is: 8,895,293.55
Step by Step Solution
- Step 1: Write the proportion equation
11,878,372.74 : 16,392,154.77 = 6,445,864.74 : x - Step 2: Convert to fraction form
11,878,372.74/16,392,154.77 = 6,445,864.74/x - Step 3: Cross multiply
11,878,372.74x = 16,392,154.77 × 6,445,864.74 - Step 4: Simplify right side
11,878,372.74x = 105,661,612,444,565.81 - Step 5: Solve for x
x = 105,661,612,444,565.81/11,878,372.74 - Step 6: Final answer
x = 8,895,293.55
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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.