Finding the Fourth Proportional to 896,864,497.20, 1,345,296,745.80 and 667,281,985.20
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Solution
The fourth proportional to 896,864,497.20, 1,345,296,745.80 and 667,281,985.20 is: 1,000,922,977.80
Step by Step Solution
- Step 1: Write the proportion equation
896,864,497.20 : 1,345,296,745.80 = 667,281,985.20 : x - Step 2: Convert to fraction form
896,864,497.20/1,345,296,745.80 = 667,281,985.20/x - Step 3: Cross multiply
896,864,497.20x = 1,345,296,745.80 × 667,281,985.20 - Step 4: Simplify right side
896,864,497.20x = 897,692,283,220,523,776 - Step 5: Solve for x
x = 897,692,283,220,523,776/896,864,497.20 - Step 6: Final answer
x = 1,000,922,977.80
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Similar ratio
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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.