Finding the Fourth Proportional to 7,354,909.20, 11,011,368.60 and 6,515,101.20
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Solution
The fourth proportional to 7,354,909.20, 11,011,368.60 and 6,515,101.20 is: 9,754,053.90
Step by Step Solution
- Step 1: Write the proportion equation
7,354,909.20 : 11,011,368.60 = 6,515,101.20 : x - Step 2: Convert to fraction form
7,354,909.20/11,011,368.60 = 6,515,101.20/x - Step 3: Cross multiply
7,354,909.20x = 11,011,368.60 × 6,515,101.20 - Step 4: Simplify right side
7,354,909.20x = 71,740,180,779,502.31 - Step 5: Solve for x
x = 71,740,180,779,502.31/7,354,909.20 - Step 6: Final answer
x = 9,754,053.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.