Finding the Fourth Proportional to 15,997,955.47, 22,070,896.68 and 9,291,146.36
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Solution
The fourth proportional to 15,997,955.47, 22,070,896.68 and 9,291,146.36 is: 12,818,133.65
Step by Step Solution
- Step 1: Write the proportion equation
15,997,955.47 : 22,070,896.68 = 9,291,146.36 : x - Step 2: Convert to fraction form
15,997,955.47/22,070,896.68 = 9,291,146.36/x - Step 3: Cross multiply
15,997,955.47x = 22,070,896.68 × 9,291,146.36 - Step 4: Simplify right side
15,997,955.47x = 205,063,931,372,818.22 - Step 5: Solve for x
x = 205,063,931,372,818.22/15,997,955.47 - Step 6: Final answer
x = 12,818,133.65
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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.