Finding the Fourth Proportional to 3,280,249,524.70, 4,920,374,287.05 and 826,586,427.70
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Solution
The fourth proportional to 3,280,249,524.70, 4,920,374,287.05 and 826,586,427.70 is: 1,239,879,641.55
Step by Step Solution
- Step 1: Write the proportion equation
3,280,249,524.70 : 4,920,374,287.05 = 826,586,427.70 : x - Step 2: Convert to fraction form
3,280,249,524.70/4,920,374,287.05 = 826,586,427.70/x - Step 3: Cross multiply
3,280,249,524.70x = 4,920,374,287.05 × 826,586,427.70 - Step 4: Simplify right side
3,280,249,524.70x = 4,067,114,604,879,594,496 - Step 5: Solve for x
x = 4,067,114,604,879,594,496/3,280,249,524.70 - Step 6: Final answer
x = 1,239,879,641.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.