Finding the Fourth Proportional to 890,352,035.40, 1,335,528,053.10 and 791,716,585.80
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Solution
The fourth proportional to 890,352,035.40, 1,335,528,053.10 and 791,716,585.80 is: 1,187,574,878.70
Step by Step Solution
- Step 1: Write the proportion equation
890,352,035.40 : 1,335,528,053.10 = 791,716,585.80 : x - Step 2: Convert to fraction form
890,352,035.40/1,335,528,053.10 = 791,716,585.80/x - Step 3: Cross multiply
890,352,035.40x = 1,335,528,053.10 × 791,716,585.80 - Step 4: Simplify right side
890,352,035.40x = 1,057,359,710,440,452,992 - Step 5: Solve for x
x = 1,057,359,710,440,452,992/890,352,035.40 - Step 6: Final answer
x = 1,187,574,878.70
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1.5x scale
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.