Finding the Fourth Proportional to 77,256,415.80, 115,884,623.70 and 23,403,727.80
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Solution
The fourth proportional to 77,256,415.80, 115,884,623.70 and 23,403,727.80 is: 35,105,591.70
Step by Step Solution
- Step 1: Write the proportion equation
77,256,415.80 : 115,884,623.70 = 23,403,727.80 : x - Step 2: Convert to fraction form
77,256,415.80/115,884,623.70 = 23,403,727.80/x - Step 3: Cross multiply
77,256,415.80x = 115,884,623.70 × 23,403,727.80 - Step 4: Simplify right side
77,256,415.80x = 2,712,132,189,280,229 - Step 5: Solve for x
x = 2,712,132,189,280,229/77,256,415.80 - Step 6: Final answer
x = 35,105,591.70
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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.