Finding the Fourth Proportional to 651,609,913.40, 977,438,489.70 and 191,594,583.80
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Solution
The fourth proportional to 651,609,913.40, 977,438,489.70 and 191,594,583.80 is: 287,398,820.63
Step by Step Solution
- Step 1: Write the proportion equation
651,609,913.40 : 977,438,489.70 = 191,594,583.80 : x - Step 2: Convert to fraction form
651,609,913.40/977,438,489.70 = 191,594,583.80/x - Step 3: Cross multiply
651,609,913.40x = 977,438,489.70 × 191,594,583.80 - Step 4: Simplify right side
651,609,913.40x = 187,271,920,624,172,096 - Step 5: Solve for x
x = 187,271,920,624,172,096/651,609,913.40 - Step 6: Final answer
x = 287,398,820.63
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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.