Finding the Fourth Proportional to 128,092,663.26, 176,767,958.73 and 69,355,368.20
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Solution
The fourth proportional to 128,092,663.26, 176,767,958.73 and 69,355,368.20 is: 95,710,453.28
Step by Step Solution
- Step 1: Write the proportion equation
128,092,663.26 : 176,767,958.73 = 69,355,368.20 : x - Step 2: Convert to fraction form
128,092,663.26/176,767,958.73 = 69,355,368.20/x - Step 3: Cross multiply
128,092,663.26x = 176,767,958.73 × 69,355,368.20 - Step 4: Simplify right side
128,092,663.26x = 12,259,806,862,797,712 - Step 5: Solve for x
x = 12,259,806,862,797,712/128,092,663.26 - Step 6: Final answer
x = 95,710,453.28
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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.