Finding the Fourth Proportional to 1,779,314,658.97, 2,455,454,190.37 and 986,358,628.75
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Solution
The fourth proportional to 1,779,314,658.97, 2,455,454,190.37 and 986,358,628.75 is: 1,361,174,886.05
Step by Step Solution
- Step 1: Write the proportion equation
1,779,314,658.97 : 2,455,454,190.37 = 986,358,628.75 : x - Step 2: Convert to fraction form
1,779,314,658.97/2,455,454,190.37 = 986,358,628.75/x - Step 3: Cross multiply
1,779,314,658.97x = 2,455,454,190.37 × 986,358,628.75 - Step 4: Simplify right side
1,779,314,658.97x = 2,421,958,428,171,794,432 - Step 5: Solve for x
x = 2,421,958,428,171,794,432/1,779,314,658.97 - Step 6: Final answer
x = 1,361,174,886.05
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1.5x scale
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.