Finding the Fourth Proportional to 105,163,039.13, 145,122,320.39 and 58,753,641.60
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Solution
The fourth proportional to 105,163,039.13, 145,122,320.39 and 58,753,641.60 is: 81,078,531.69
Step by Step Solution
- Step 1: Write the proportion equation
105,163,039.13 : 145,122,320.39 = 58,753,641.60 : x - Step 2: Convert to fraction form
105,163,039.13/145,122,320.39 = 58,753,641.60/x - Step 3: Cross multiply
105,163,039.13x = 145,122,320.39 × 58,753,641.60 - Step 4: Simplify right side
105,163,039.13x = 8,526,464,800,060,664 - Step 5: Solve for x
x = 8,526,464,800,060,664/105,163,039.13 - Step 6: Final answer
x = 81,078,531.69
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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.