Finding the Fourth Proportional to 970,554,304.80, 1,455,831,457.20 and 426,358,720.80
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Solution
The fourth proportional to 970,554,304.80, 1,455,831,457.20 and 426,358,720.80 is: 639,538,081.20
Step by Step Solution
- Step 1: Write the proportion equation
970,554,304.80 : 1,455,831,457.20 = 426,358,720.80 : x - Step 2: Convert to fraction form
970,554,304.80/1,455,831,457.20 = 426,358,720.80/x - Step 3: Cross multiply
970,554,304.80x = 1,455,831,457.20 × 426,358,720.80 - Step 4: Simplify right side
970,554,304.80x = 620,706,437,792,192,000 - Step 5: Solve for x
x = 620,706,437,792,192,000/970,554,304.80 - Step 6: Final answer
x = 639,538,081.20
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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.