Finding the Fourth Proportional to 86,878,936.80, 130,316,412.60 and 43,736,554.80
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Solution
The fourth proportional to 86,878,936.80, 130,316,412.60 and 43,736,554.80 is: 65,603,829.09
Step by Step Solution
- Step 1: Write the proportion equation
86,878,936.80 : 130,316,412.60 = 43,736,554.80 : x - Step 2: Convert to fraction form
86,878,936.80/130,316,412.60 = 43,736,554.80/x - Step 3: Cross multiply
86,878,936.80x = 130,316,412.60 × 43,736,554.80 - Step 4: Simplify right side
86,878,936.80x = 5,699,590,921,019,310 - Step 5: Solve for x
x = 5,699,590,921,019,310/86,878,936.80 - Step 6: Final answer
x = 65,603,829.09
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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.