Finding the Fourth Proportional to 22,908,490.72, 31,611,847.26 and 13,487,794.63
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Solution
The fourth proportional to 22,908,490.72, 31,611,847.26 and 13,487,794.63 is: 18,612,055.63
Step by Step Solution
- Step 1: Write the proportion equation
22,908,490.72 : 31,611,847.26 = 13,487,794.63 : x - Step 2: Convert to fraction form
22,908,490.72/31,611,847.26 = 13,487,794.63/x - Step 3: Cross multiply
22,908,490.72x = 31,611,847.26 × 13,487,794.63 - Step 4: Simplify right side
22,908,490.72x = 426,374,103,717,808.25 - Step 5: Solve for x
x = 426,374,103,717,808.25/22,908,490.72 - Step 6: Final answer
x = 18,612,055.63
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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.