Finding the Fourth Proportional to 11,368,909.19, 15,689,134.80 and 6,212,270.75
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Solution
The fourth proportional to 11,368,909.19, 15,689,134.80 and 6,212,270.75 is: 8,572,955.55
Step by Step Solution
- Step 1: Write the proportion equation
11,368,909.19 : 15,689,134.80 = 6,212,270.75 : x - Step 2: Convert to fraction form
11,368,909.19/15,689,134.80 = 6,212,270.75/x - Step 3: Cross multiply
11,368,909.19x = 15,689,134.80 × 6,212,270.75 - Step 4: Simplify right side
11,368,909.19x = 97,465,153,132,401.44 - Step 5: Solve for x
x = 97,465,153,132,401.44/11,368,909.19 - Step 6: Final answer
x = 8,572,955.55
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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.