Finding the Fourth Proportional to 26,905,638.42, 37,130,956.73 and 15,145,664.96
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Solution
The fourth proportional to 26,905,638.42, 37,130,956.73 and 15,145,664.96 is: 20,901,679.47
Step by Step Solution
- Step 1: Write the proportion equation
26,905,638.42 : 37,130,956.73 = 15,145,664.96 : x - Step 2: Convert to fraction form
26,905,638.42/37,130,956.73 = 15,145,664.96/x - Step 3: Cross multiply
26,905,638.42x = 37,130,956.73 × 15,145,664.96 - Step 4: Simplify right side
26,905,638.42x = 562,373,030,276,837.19 - Step 5: Solve for x
x = 562,373,030,276,837.19/26,905,638.42 - Step 6: Final answer
x = 20,901,679.47
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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.