Finding the Fourth Proportional to 12,356,652.32, 17,048,655.24 and 7,129,246.76
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Solution
The fourth proportional to 12,356,652.32, 17,048,655.24 and 7,129,246.76 is: 9,836,326.78
Step by Step Solution
- Step 1: Write the proportion equation
12,356,652.32 : 17,048,655.24 = 7,129,246.76 : x - Step 2: Convert to fraction form
12,356,652.32/17,048,655.24 = 7,129,246.76/x - Step 3: Cross multiply
12,356,652.32x = 17,048,655.24 × 7,129,246.76 - Step 4: Simplify right side
12,356,652.32x = 121,544,070,132,127 - Step 5: Solve for x
x = 121,544,070,132,127/12,356,652.32 - Step 6: Final answer
x = 9,836,326.78
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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.