Finding the Fourth Proportional to 837,128,886.40, 1,255,693,329.60 and 655,531,292.80
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Solution
The fourth proportional to 837,128,886.40, 1,255,693,329.60 and 655,531,292.80 is: 983,296,939.20
Step by Step Solution
- Step 1: Write the proportion equation
837,128,886.40 : 1,255,693,329.60 = 655,531,292.80 : x - Step 2: Convert to fraction form
837,128,886.40/1,255,693,329.60 = 655,531,292.80/x - Step 3: Cross multiply
837,128,886.40x = 1,255,693,329.60 × 655,531,292.80 - Step 4: Simplify right side
837,128,886.40x = 823,146,271,713,024,384 - Step 5: Solve for x
x = 823,146,271,713,024,384/837,128,886.40 - Step 6: Final answer
x = 983,296,939.20
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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.