Finding the Fourth Proportional to 14,478,573.51, 19,980,370.58 and 7,952,182.11
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Solution
The fourth proportional to 14,478,573.51, 19,980,370.58 and 7,952,182.11 is: 10,973,977.88
Step by Step Solution
- Step 1: Write the proportion equation
14,478,573.51 : 19,980,370.58 = 7,952,182.11 : x - Step 2: Convert to fraction form
14,478,573.51/19,980,370.58 = 7,952,182.11/x - Step 3: Cross multiply
14,478,573.51x = 19,980,370.58 × 7,952,182.11 - Step 4: Simplify right side
14,478,573.51x = 158,887,545,437,685.41 - Step 5: Solve for x
x = 158,887,545,437,685.41/14,478,573.51 - Step 6: Final answer
x = 10,973,977.88
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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.