Finding the Fourth Proportional to 15,320,056.58, 21,141,041.94 and 8,350,580.79
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Solution
The fourth proportional to 15,320,056.58, 21,141,041.94 and 8,350,580.79 is: 11,523,454.75
Step by Step Solution
- Step 1: Write the proportion equation
15,320,056.58 : 21,141,041.94 = 8,350,580.79 : x - Step 2: Convert to fraction form
15,320,056.58/21,141,041.94 = 8,350,580.79/x - Step 3: Cross multiply
15,320,056.58x = 21,141,041.94 × 8,350,580.79 - Step 4: Simplify right side
15,320,056.58x = 176,539,978,704,748.34 - Step 5: Solve for x
x = 176,539,978,704,748.34/15,320,056.58 - Step 6: Final answer
x = 11,523,454.75
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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.