Finding the Fourth Proportional to 722,304,315.60, 1,083,456,473.40 and 538,367,701.20
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Solution
The fourth proportional to 722,304,315.60, 1,083,456,473.40 and 538,367,701.20 is: 807,551,551.80
Step by Step Solution
- Step 1: Write the proportion equation
722,304,315.60 : 1,083,456,473.40 = 538,367,701.20 : x - Step 2: Convert to fraction form
722,304,315.60/1,083,456,473.40 = 538,367,701.20/x - Step 3: Cross multiply
722,304,315.60x = 1,083,456,473.40 × 538,367,701.20 - Step 4: Simplify right side
722,304,315.60x = 583,297,970,934,617,088 - Step 5: Solve for x
x = 583,297,970,934,617,088/722,304,315.60 - Step 6: Final answer
x = 807,551,551.80
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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.