Finding the Fourth Proportional to 135,992,194.98, 187,699,519.38 and 86,422,903.21
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Solution
The fourth proportional to 135,992,194.98, 187,699,519.38 and 86,422,903.21 is: 119,282,855.89
Step by Step Solution
- Step 1: Write the proportion equation
135,992,194.98 : 187,699,519.38 = 86,422,903.21 : x - Step 2: Convert to fraction form
135,992,194.98/187,699,519.38 = 86,422,903.21/x - Step 3: Cross multiply
135,992,194.98x = 187,699,519.38 × 86,422,903.21 - Step 4: Simplify right side
135,992,194.98x = 16,221,537,395,941,258 - Step 5: Solve for x
x = 16,221,537,395,941,258/135,992,194.98 - Step 6: Final answer
x = 119,282,855.89
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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.