Finding the Fourth Proportional to 15,225,056.66, 21,008,642.28 and 8,699,108.60
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Solution
The fourth proportional to 15,225,056.66, 21,008,642.28 and 8,699,108.60 is: 12,003,663.75
Step by Step Solution
- Step 1: Write the proportion equation
15,225,056.66 : 21,008,642.28 = 8,699,108.60 : x - Step 2: Convert to fraction form
15,225,056.66/21,008,642.28 = 8,699,108.60/x - Step 3: Cross multiply
15,225,056.66x = 21,008,642.28 × 8,699,108.60 - Step 4: Simplify right side
15,225,056.66x = 182,756,460,732,271.62 - Step 5: Solve for x
x = 182,756,460,732,271.62/15,225,056.66 - Step 6: Final answer
x = 12,003,663.75
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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.