Finding the Fourth Proportional to 92,945,371.52, 128,263,903.76 and 51,128,536.70
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Solution
The fourth proportional to 92,945,371.52, 128,263,903.76 and 51,128,536.70 is: 70,556,990.66
Step by Step Solution
- Step 1: Write the proportion equation
92,945,371.52 : 128,263,903.76 = 51,128,536.70 : x - Step 2: Convert to fraction form
92,945,371.52/128,263,903.76 = 51,128,536.70/x - Step 3: Cross multiply
92,945,371.52x = 128,263,903.76 × 51,128,536.70 - Step 4: Simplify right side
92,945,371.52x = 6,557,945,710,678,429 - Step 5: Solve for x
x = 6,557,945,710,678,429/92,945,371.52 - Step 6: Final answer
x = 70,556,990.66
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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.