Finding the Fourth Proportional to 85,698,254.01, 118,299,782.67 and 57,858,678.75
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Solution
The fourth proportional to 85,698,254.01, 118,299,782.67 and 57,858,678.75 is: 79,869,411.59
Step by Step Solution
- Step 1: Write the proportion equation
85,698,254.01 : 118,299,782.67 = 57,858,678.75 : x - Step 2: Convert to fraction form
85,698,254.01/118,299,782.67 = 57,858,678.75/x - Step 3: Cross multiply
85,698,254.01x = 118,299,782.67 × 57,858,678.75 - Step 4: Simplify right side
85,698,254.01x = 6,844,669,121,698,347 - Step 5: Solve for x
x = 6,844,669,121,698,347/85,698,254.01 - Step 6: Final answer
x = 79,869,411.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.