Finding the Fourth Proportional to 1,994,547,113.80, 2,991,820,670.70 and 614,182,260.40
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Solution
The fourth proportional to 1,994,547,113.80, 2,991,820,670.70 and 614,182,260.40 is: 921,273,390.60
Step by Step Solution
- Step 1: Write the proportion equation
1,994,547,113.80 : 2,991,820,670.70 = 614,182,260.40 : x - Step 2: Convert to fraction form
1,994,547,113.80/2,991,820,670.70 = 614,182,260.40/x - Step 3: Cross multiply
1,994,547,113.80x = 2,991,820,670.70 × 614,182,260.40 - Step 4: Simplify right side
1,994,547,113.80x = 1,837,523,182,241,969,920 - Step 5: Solve for x
x = 1,837,523,182,241,969,920/1,994,547,113.80 - Step 6: Final answer
x = 921,273,390.60
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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.