Finding the Fourth Proportional to 90,933,372.14, 125,488,103.79 and 49,117,437.18
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Solution
The fourth proportional to 90,933,372.14, 125,488,103.79 and 49,117,437.18 is: 67,782,090.45
Step by Step Solution
- Step 1: Write the proportion equation
90,933,372.14 : 125,488,103.79 = 49,117,437.18 : x - Step 2: Convert to fraction form
90,933,372.14/125,488,103.79 = 49,117,437.18/x - Step 3: Cross multiply
90,933,372.14x = 125,488,103.79 × 49,117,437.18 - Step 4: Simplify right side
90,933,372.14x = 6,163,654,054,742,645 - Step 5: Solve for x
x = 6,163,654,054,742,645/90,933,372.14 - Step 6: Final answer
x = 67,782,090.45
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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.