Finding the Fourth Proportional to 1,981,506,074.70, 2,972,259,112.05 and 601,318,368.30
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Solution
The fourth proportional to 1,981,506,074.70, 2,972,259,112.05 and 601,318,368.30 is: 901,977,552.45
Step by Step Solution
- Step 1: Write the proportion equation
1,981,506,074.70 : 2,972,259,112.05 = 601,318,368.30 : x - Step 2: Convert to fraction form
1,981,506,074.70/2,972,259,112.05 = 601,318,368.30/x - Step 3: Cross multiply
1,981,506,074.70x = 2,972,259,112.05 × 601,318,368.30 - Step 4: Simplify right side
1,981,506,074.70x = 1,787,273,999,422,712,832 - Step 5: Solve for x
x = 1,787,273,999,422,712,832/1,981,506,074.70 - Step 6: Final answer
x = 901,977,552.45
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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.