Finding the Fourth Proportional to 810,119,898.55, 1,118,145,310.24 and 492,512,656.99
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Solution
The fourth proportional to 810,119,898.55, 1,118,145,310.24 and 492,512,656.99 is: 679,776,806.66
Step by Step Solution
- Step 1: Write the proportion equation
810,119,898.55 : 1,118,145,310.24 = 492,512,656.99 : x - Step 2: Convert to fraction form
810,119,898.55/1,118,145,310.24 = 492,512,656.99/x - Step 3: Cross multiply
810,119,898.55x = 1,118,145,310.24 × 492,512,656.99 - Step 4: Simplify right side
810,119,898.55x = 550,700,717,643,183,616 - Step 5: Solve for x
x = 550,700,717,643,183,616/810,119,898.55 - Step 6: Final answer
x = 679,776,806.66
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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.