Finding the Fourth Proportional to 100,177,035.74, 138,240,966.93 and 55,521,104.88
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Solution
The fourth proportional to 100,177,035.74, 138,240,966.93 and 55,521,104.88 is: 76,617,272.28
Step by Step Solution
- Step 1: Write the proportion equation
100,177,035.74 : 138,240,966.93 = 55,521,104.88 : x - Step 2: Convert to fraction form
100,177,035.74/138,240,966.93 = 55,521,104.88/x - Step 3: Cross multiply
100,177,035.74x = 138,240,966.93 × 55,521,104.88 - Step 4: Simplify right side
100,177,035.74x = 7,675,291,223,355,537 - Step 5: Solve for x
x = 7,675,291,223,355,537/100,177,035.74 - Step 6: Final answer
x = 76,617,272.28
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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.