Finding the Fourth Proportional to 959,366,726.80, 1,439,050,090.20 and 890,491,973.20
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Solution
The fourth proportional to 959,366,726.80, 1,439,050,090.20 and 890,491,973.20 is: 1,335,737,959.80
Step by Step Solution
- Step 1: Write the proportion equation
959,366,726.80 : 1,439,050,090.20 = 890,491,973.20 : x - Step 2: Convert to fraction form
959,366,726.80/1,439,050,090.20 = 890,491,973.20/x - Step 3: Cross multiply
959,366,726.80x = 1,439,050,090.20 × 890,491,973.20 - Step 4: Simplify right side
959,366,726.80x = 1,281,462,554,355,836,160 - Step 5: Solve for x
x = 1,281,462,554,355,836,160/959,366,726.80 - Step 6: Final answer
x = 1,335,737,959.80
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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.