Finding the Fourth Proportional to 643,547,816.99, 965,330,693.54 and 183,485,986.31
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Solution
The fourth proportional to 643,547,816.99, 965,330,693.54 and 183,485,986.31 is: 275,231,536.39
Step by Step Solution
- Step 1: Write the proportion equation
643,547,816.99 : 965,330,693.54 = 183,485,986.31 : x - Step 2: Convert to fraction form
643,547,816.99/965,330,693.54 = 183,485,986.31/x - Step 3: Cross multiply
643,547,816.99x = 965,330,693.54 × 183,485,986.31 - Step 4: Simplify right side
643,547,816.99x = 177,124,654,413,759,168 - Step 5: Solve for x
x = 177,124,654,413,759,168/643,547,816.99 - Step 6: Final answer
x = 275,231,536.39
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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.