Finding the Fourth Proportional to 80,873,205.80, 121,342,986.30 and 29,779,701.80
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Solution
The fourth proportional to 80,873,205.80, 121,342,986.30 and 29,779,701.80 is: 44,681,769.59
Step by Step Solution
- Step 1: Write the proportion equation
80,873,205.80 : 121,342,986.30 = 29,779,701.80 : x - Step 2: Convert to fraction form
80,873,205.80/121,342,986.30 = 29,779,701.80/x - Step 3: Cross multiply
80,873,205.80x = 121,342,986.30 × 29,779,701.80 - Step 4: Simplify right side
80,873,205.80x = 3,613,557,947,535,485.50 - Step 5: Solve for x
x = 3,613,557,947,535,485.50/80,873,205.80 - Step 6: Final answer
x = 44,681,769.59
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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.