Finding the Fourth Proportional to 239,344,819.20, 359,017,228.80 and 93,729,985.20
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Solution
The fourth proportional to 239,344,819.20, 359,017,228.80 and 93,729,985.20 is: 140,594,977.80
Step by Step Solution
- Step 1: Write the proportion equation
239,344,819.20 : 359,017,228.80 = 93,729,985.20 : x - Step 2: Convert to fraction form
239,344,819.20/359,017,228.80 = 93,729,985.20/x - Step 3: Cross multiply
239,344,819.20x = 359,017,228.80 × 93,729,985.20 - Step 4: Simplify right side
239,344,819.20x = 33,650,679,541,969,016 - Step 5: Solve for x
x = 33,650,679,541,969,016/239,344,819.20 - Step 6: Final answer
x = 140,594,977.80
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1.5x scale
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.