Finding the Fourth Proportional to 138,367,944.91, 207,604,337.19 and 83,074,393.65
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Solution
The fourth proportional to 138,367,944.91, 207,604,337.19 and 83,074,393.65 is: 124,643,062.69
Step by Step Solution
- Step 1: Write the proportion equation
138,367,944.91 : 207,604,337.19 = 83,074,393.65 : x - Step 2: Convert to fraction form
138,367,944.91/207,604,337.19 = 83,074,393.65/x - Step 3: Cross multiply
138,367,944.91x = 207,604,337.19 × 83,074,393.65 - Step 4: Simplify right side
138,367,944.91x = 17,246,604,431,480,924 - Step 5: Solve for x
x = 17,246,604,431,480,924/138,367,944.91 - Step 6: Final answer
x = 124,643,062.69
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.