Finding the Fourth Proportional to 102,557,659.20, 153,936,021.60 and 51,497,332.80
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Solution
The fourth proportional to 102,557,659.20, 153,936,021.60 and 51,497,332.80 is: 77,295,977.66
Step by Step Solution
- Step 1: Write the proportion equation
102,557,659.20 : 153,936,021.60 = 51,497,332.80 : x - Step 2: Convert to fraction form
102,557,659.20/153,936,021.60 = 51,497,332.80/x - Step 3: Cross multiply
102,557,659.20x = 153,936,021.60 × 51,497,332.80 - Step 4: Simplify right side
102,557,659.20x = 7,927,294,534,243,188 - Step 5: Solve for x
x = 7,927,294,534,243,188/102,557,659.20 - Step 6: Final answer
x = 77,295,977.66
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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.