Finding the Fourth Proportional to 128,338,585.92, 177,106,043.16 and 69,602,547.24
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Solution
The fourth proportional to 128,338,585.92, 177,106,043.16 and 69,602,547.24 is: 96,050,861.46
Step by Step Solution
- Step 1: Write the proportion equation
128,338,585.92 : 177,106,043.16 = 69,602,547.24 : x - Step 2: Convert to fraction form
128,338,585.92/177,106,043.16 = 69,602,547.24/x - Step 3: Cross multiply
128,338,585.92x = 177,106,043.16 × 69,602,547.24 - Step 4: Simplify right side
128,338,585.92x = 12,327,031,735,533,378 - Step 5: Solve for x
x = 12,327,031,735,533,378/128,338,585.92 - Step 6: Final answer
x = 96,050,861.46
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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.