Finding the Fourth Proportional to 85,599,251.51, 128,228,816.14 and 47,165,438.39
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Solution
The fourth proportional to 85,599,251.51, 128,228,816.14 and 47,165,438.39 is: 70,654,453.40
Step by Step Solution
- Step 1: Write the proportion equation
85,599,251.51 : 128,228,816.14 = 47,165,438.39 : x - Step 2: Convert to fraction form
85,599,251.51/128,228,816.14 = 47,165,438.39/x - Step 3: Cross multiply
85,599,251.51x = 128,228,816.14 × 47,165,438.39 - Step 4: Simplify right side
85,599,251.51x = 6,047,968,326,714,750 - Step 5: Solve for x
x = 6,047,968,326,714,750/85,599,251.51 - Step 6: Final answer
x = 70,654,453.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.