Finding the Fourth Proportional to 130,807,575.52, 180,518,546.64 and 75,063,203.68
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Solution
The fourth proportional to 130,807,575.52, 180,518,546.64 and 75,063,203.68 is: 103,589,569.49
Step by Step Solution
- Step 1: Write the proportion equation
130,807,575.52 : 180,518,546.64 = 75,063,203.68 : x - Step 2: Convert to fraction form
130,807,575.52/180,518,546.64 = 75,063,203.68/x - Step 3: Cross multiply
130,807,575.52x = 180,518,546.64 × 75,063,203.68 - Step 4: Simplify right side
130,807,575.52x = 13,550,300,434,455,900 - Step 5: Solve for x
x = 13,550,300,434,455,900/130,807,575.52 - Step 6: Final answer
x = 103,589,569.49
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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.