Finding the Fourth Proportional to 712,497,657.20, 1,068,746,485.80 and 712,497,657.20
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Solution
The fourth proportional to 712,497,657.20, 1,068,746,485.80 and 712,497,657.20 is: 1,068,746,485.80
Step by Step Solution
- Step 1: Write the proportion equation
712,497,657.20 : 1,068,746,485.80 = 712,497,657.20 : x - Step 2: Convert to fraction form
712,497,657.20/1,068,746,485.80 = 712,497,657.20/x - Step 3: Cross multiply
712,497,657.20x = 1,068,746,485.80 × 712,497,657.20 - Step 4: Simplify right side
712,497,657.20x = 761,479,367,273,233,024 - Step 5: Solve for x
x = 761,479,367,273,233,024/712,497,657.20 - Step 6: Final answer
x = 1,068,746,485.80
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Double scale
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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.