Finding the Fourth Proportional to 283,768,987.96, 391,601,030.17 and 153,388,795.96
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Solution
The fourth proportional to 283,768,987.96, 391,601,030.17 and 153,388,795.96 is: 211,676,444.79
Step by Step Solution
- Step 1: Write the proportion equation
283,768,987.96 : 391,601,030.17 = 153,388,795.96 : x - Step 2: Convert to fraction form
283,768,987.96/391,601,030.17 = 153,388,795.96/x - Step 3: Cross multiply
283,768,987.96x = 391,601,030.17 × 153,388,795.96 - Step 4: Simplify right side
283,768,987.96x = 60,067,210,512,130,464 - Step 5: Solve for x
x = 60,067,210,512,130,464/283,768,987.96 - Step 6: Final answer
x = 211,676,444.79
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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.