Finding the Fourth Proportional to 105,378,793.41, 145,424,456.55 and 57,693,252.17
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Solution
The fourth proportional to 105,378,793.41, 145,424,456.55 and 57,693,252.17 is: 79,617,630.56
Step by Step Solution
- Step 1: Write the proportion equation
105,378,793.41 : 145,424,456.55 = 57,693,252.17 : x - Step 2: Convert to fraction form
105,378,793.41/145,424,456.55 = 57,693,252.17/x - Step 3: Cross multiply
105,378,793.41x = 145,424,456.55 × 57,693,252.17 - Step 4: Simplify right side
105,378,793.41x = 8,390,009,842,697,236 - Step 5: Solve for x
x = 8,390,009,842,697,236/105,378,793.41 - Step 6: Final answer
x = 79,617,630.56
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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.