Finding the Fourth Proportional to 79,128,156.80, 118,692,235.20 and 44,549,062.40
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Solution
The fourth proportional to 79,128,156.80, 118,692,235.20 and 44,549,062.40 is: 66,823,593.60
Step by Step Solution
- Step 1: Write the proportion equation
79,128,156.80 : 118,692,235.20 = 44,549,062.40 : x - Step 2: Convert to fraction form
79,128,156.80/118,692,235.20 = 44,549,062.40/x - Step 3: Cross multiply
79,128,156.80x = 118,692,235.20 × 44,549,062.40 - Step 4: Simplify right side
79,128,156.80x = 5,287,627,792,320,276 - Step 5: Solve for x
x = 5,287,627,792,320,276/79,128,156.80 - Step 6: Final answer
x = 66,823,593.60
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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.