Finding the Fourth Proportional to 626,269,275.33, 866,124,395.42 and 547,816,642.71
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Solution
The fourth proportional to 626,269,275.33, 866,124,395.42 and 547,816,642.71 is: 757,625,157.67
Step by Step Solution
- Step 1: Write the proportion equation
626,269,275.33 : 866,124,395.42 = 547,816,642.71 : x - Step 2: Convert to fraction form
626,269,275.33/866,124,395.42 = 547,816,642.71/x - Step 3: Cross multiply
626,269,275.33x = 866,124,395.42 × 547,816,642.71 - Step 4: Simplify right side
626,269,275.33x = 474,477,358,465,473,856 - Step 5: Solve for x
x = 474,477,358,465,473,856/626,269,275.33 - Step 6: Final answer
x = 757,625,157.67
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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.