Finding the Fourth Proportional to 448,152,763.05, 618,453,508.55 and 249,926,771.79
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Solution
The fourth proportional to 448,152,763.05, 618,453,508.55 and 249,926,771.79 is: 344,900,448.32
Step by Step Solution
- Step 1: Write the proportion equation
448,152,763.05 : 618,453,508.55 = 249,926,771.79 : x - Step 2: Convert to fraction form
448,152,763.05/618,453,508.55 = 249,926,771.79/x - Step 3: Cross multiply
448,152,763.05x = 618,453,508.55 × 249,926,771.79 - Step 4: Simplify right side
448,152,763.05x = 154,568,088,891,633,216 - Step 5: Solve for x
x = 154,568,088,891,633,216/448,152,763.05 - Step 6: Final answer
x = 344,900,448.32
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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.