Finding the Fourth Proportional to 813,888,927.05, 1,140,975,047.95 and 813,888,927.05
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Solution
The fourth proportional to 813,888,927.05, 1,140,975,047.95 and 813,888,927.05 is: 1,140,975,047.95
Step by Step Solution
- Step 1: Write the proportion equation
813,888,927.05 : 1,140,975,047.95 = 813,888,927.05 : x - Step 2: Convert to fraction form
813,888,927.05/1,140,975,047.95 = 813,888,927.05/x - Step 3: Cross multiply
813,888,927.05x = 1,140,975,047.95 × 813,888,927.05 - Step 4: Simplify right side
813,888,927.05x = 928,626,957,566,847,744 - Step 5: Solve for x
x = 928,626,957,566,847,744/813,888,927.05 - Step 6: Final answer
x = 1,140,975,047.95
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.