Finding the Fourth Proportional to 9,387,987.40, 14,092,478.70 and 7,267,472.20
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Solution
The fourth proportional to 9,387,987.40, 14,092,478.70 and 7,267,472.20 is: 10,909,334.75
Step by Step Solution
- Step 1: Write the proportion equation
9,387,987.40 : 14,092,478.70 = 7,267,472.20 : x - Step 2: Convert to fraction form
9,387,987.40/14,092,478.70 = 7,267,472.20/x - Step 3: Cross multiply
9,387,987.40x = 14,092,478.70 × 7,267,472.20 - Step 4: Simplify right side
9,387,987.40x = 102,416,697,181,342.14 - Step 5: Solve for x
x = 102,416,697,181,342.14/9,387,987.40 - Step 6: Final answer
x = 10,909,334.75
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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.