Finding the Fourth Proportional to 128,441,182.68, 177,250,129.74 and 69,704,355.06
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Solution
The fourth proportional to 128,441,182.68, 177,250,129.74 and 69,704,355.06 is: 96,192,714.21
Step by Step Solution
- Step 1: Write the proportion equation
128,441,182.68 : 177,250,129.74 = 69,704,355.06 : x - Step 2: Convert to fraction form
128,441,182.68/177,250,129.74 = 69,704,355.06/x - Step 3: Cross multiply
128,441,182.68x = 177,250,129.74 × 69,704,355.06 - Step 4: Simplify right side
128,441,182.68x = 12,355,105,977,828,026 - Step 5: Solve for x
x = 12,355,105,977,828,026/128,441,182.68 - Step 6: Final answer
x = 96,192,714.21
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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.