Finding the Fourth Proportional to 651,728,954.80, 977,593,432.20 and 406,362,645.10
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Solution
The fourth proportional to 651,728,954.80, 977,593,432.20 and 406,362,645.10 is: 609,543,967.65
Step by Step Solution
- Step 1: Write the proportion equation
651,728,954.80 : 977,593,432.20 = 406,362,645.10 : x - Step 2: Convert to fraction form
651,728,954.80/977,593,432.20 = 406,362,645.10/x - Step 3: Cross multiply
651,728,954.80x = 977,593,432.20 × 406,362,645.10 - Step 4: Simplify right side
651,728,954.80x = 397,257,452,941,179,584 - Step 5: Solve for x
x = 397,257,452,941,179,584/651,728,954.80 - Step 6: Final answer
x = 609,543,967.65
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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.