Finding the Fourth Proportional to 409,581,975.36, 565,223,176.80 and 223,943,119.68
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Solution
The fourth proportional to 409,581,975.36, 565,223,176.80 and 223,943,119.68 is: 309,041,532.94
Step by Step Solution
- Step 1: Write the proportion equation
409,581,975.36 : 565,223,176.80 = 223,943,119.68 : x - Step 2: Convert to fraction form
409,581,975.36/565,223,176.80 = 223,943,119.68/x - Step 3: Cross multiply
409,581,975.36x = 565,223,176.80 × 223,943,119.68 - Step 4: Simplify right side
409,581,975.36x = 126,577,841,528,032,192 - Step 5: Solve for x
x = 126,577,841,528,032,192/409,581,975.36 - Step 6: Final answer
x = 309,041,532.94
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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.