Finding the Fourth Proportional to 85,943,526.75, 128,918,847.65 and 25,359,252.75
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Solution
The fourth proportional to 85,943,526.75, 128,918,847.65 and 25,359,252.75 is: 38,039,928.84
Step by Step Solution
- Step 1: Write the proportion equation
85,943,526.75 : 128,918,847.65 = 25,359,252.75 : x - Step 2: Convert to fraction form
85,943,526.75/128,918,847.65 = 25,359,252.75/x - Step 3: Cross multiply
85,943,526.75x = 128,918,847.65 × 25,359,252.75 - Step 4: Simplify right side
85,943,526.75x = 3,269,285,641,668,297 - Step 5: Solve for x
x = 3,269,285,641,668,297/85,943,526.75 - Step 6: Final answer
x = 38,039,928.84
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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.