Finding the Fourth Proportional to 423,534,870.98, 634,753,048.70 and 190,193,285.06
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Solution
The fourth proportional to 423,534,870.98, 634,753,048.70 and 190,193,285.06 is: 285,043,276.96
Step by Step Solution
- Step 1: Write the proportion equation
423,534,870.98 : 634,753,048.70 = 190,193,285.06 : x - Step 2: Convert to fraction form
423,534,870.98/634,753,048.70 = 190,193,285.06/x - Step 3: Cross multiply
423,534,870.98x = 634,753,048.70 × 190,193,285.06 - Step 4: Simplify right side
423,534,870.98x = 120,725,767,529,978,448 - Step 5: Solve for x
x = 120,725,767,529,978,448/423,534,870.98 - Step 6: Final answer
x = 285,043,276.96
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.