Finding the Fourth Proportional to 1,232,441,288.40, 1,700,943,378.84 and 762,693,895.92
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Solution
The fourth proportional to 1,232,441,288.40, 1,700,943,378.84 and 762,693,895.92 is: 1,052,625,504.00
Step by Step Solution
- Step 1: Write the proportion equation
1,232,441,288.40 : 1,700,943,378.84 = 762,693,895.92 : x - Step 2: Convert to fraction form
1,232,441,288.40/1,700,943,378.84 = 762,693,895.92/x - Step 3: Cross multiply
1,232,441,288.40x = 1,700,943,378.84 × 762,693,895.92 - Step 4: Simplify right side
1,232,441,288.40x = 1,297,299,132,346,808,064 - Step 5: Solve for x
x = 1,297,299,132,346,808,064/1,232,441,288.40 - Step 6: Final answer
x = 1,052,625,504.00
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1.5x scale
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.