Finding the Fourth Proportional to 14,438,720.56, 19,925,448.30 and 7,912,364.44
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Solution
The fourth proportional to 14,438,720.56, 19,925,448.30 and 7,912,364.44 is: 10,919,070.56
Step by Step Solution
- Step 1: Write the proportion equation
14,438,720.56 : 19,925,448.30 = 7,912,364.44 : x - Step 2: Convert to fraction form
14,438,720.56/19,925,448.30 = 7,912,364.44/x - Step 3: Cross multiply
14,438,720.56x = 19,925,448.30 × 7,912,364.44 - Step 4: Simplify right side
14,438,720.56x = 157,657,408,579,978.47 - Step 5: Solve for x
x = 157,657,408,579,978.47/14,438,720.56 - Step 6: Final answer
x = 10,919,070.56
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1.5x scale
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.