Finding the Fourth Proportional to 2,553,414,005.20, 3,830,121,007.80 and 614,717,237.20
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Solution
The fourth proportional to 2,553,414,005.20, 3,830,121,007.80 and 614,717,237.20 is: 922,075,855.80
Step by Step Solution
- Step 1: Write the proportion equation
2,553,414,005.20 : 3,830,121,007.80 = 614,717,237.20 : x - Step 2: Convert to fraction form
2,553,414,005.20/3,830,121,007.80 = 614,717,237.20/x - Step 3: Cross multiply
2,553,414,005.20x = 3,830,121,007.80 × 614,717,237.20 - Step 4: Simplify right side
2,553,414,005.20x = 2,354,441,404,056,496,128 - Step 5: Solve for x
x = 2,354,441,404,056,496,128/2,553,414,005.20 - Step 6: Final answer
x = 922,075,855.80
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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.