Finding the Fourth Proportional to 15,584,712.09, 21,507,038.09 and 8,615,276.88
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Solution
The fourth proportional to 15,584,712.09, 21,507,038.09 and 8,615,276.88 is: 11,889,156.95
Step by Step Solution
- Step 1: Write the proportion equation
15,584,712.09 : 21,507,038.09 = 8,615,276.88 : x - Step 2: Convert to fraction form
15,584,712.09/21,507,038.09 = 8,615,276.88/x - Step 3: Cross multiply
15,584,712.09x = 21,507,038.09 × 8,615,276.88 - Step 4: Simplify right side
15,584,712.09x = 185,289,088,014,056.38 - Step 5: Solve for x
x = 185,289,088,014,056.38/15,584,712.09 - Step 6: Final answer
x = 11,889,156.95
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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.