Finding the Fourth Proportional to 10,440,772.31, 15,659,291.98 and 6,642,973.91
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Solution
The fourth proportional to 10,440,772.31, 15,659,291.98 and 6,642,973.91 is: 9,963,273.31
Step by Step Solution
- Step 1: Write the proportion equation
10,440,772.31 : 15,659,291.98 = 6,642,973.91 : x - Step 2: Convert to fraction form
10,440,772.31/15,659,291.98 = 6,642,973.91/x - Step 3: Cross multiply
10,440,772.31x = 15,659,291.98 × 6,642,973.91 - Step 4: Simplify right side
10,440,772.31x = 104,024,268,072,212.25 - Step 5: Solve for x
x = 104,024,268,072,212.25/10,440,772.31 - Step 6: Final answer
x = 9,963,273.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.