Finding the Fourth Proportional to 6,911,197.76, 9,539,349.84 and 4,011,522.80
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Solution
The fourth proportional to 6,911,197.76, 9,539,349.84 and 4,011,522.80 is: 5,537,002.51
Step by Step Solution
- Step 1: Write the proportion equation
6,911,197.76 : 9,539,349.84 = 4,011,522.80 : x - Step 2: Convert to fraction form
6,911,197.76/9,539,349.84 = 4,011,522.80/x - Step 3: Cross multiply
6,911,197.76x = 9,539,349.84 × 4,011,522.80 - Step 4: Simplify right side
6,911,197.76x = 38,267,319,332,639.60 - Step 5: Solve for x
x = 38,267,319,332,639.60/6,911,197.76 - Step 6: Final answer
x = 5,537,002.51
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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.