Finding the Fourth Proportional to 1,930,783,965.20, 2,896,175,947.80 and 704,832,246.80
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Solution
The fourth proportional to 1,930,783,965.20, 2,896,175,947.80 and 704,832,246.80 is: 1,057,248,370.20
Step by Step Solution
- Step 1: Write the proportion equation
1,930,783,965.20 : 2,896,175,947.80 = 704,832,246.80 : x - Step 2: Convert to fraction form
1,930,783,965.20/2,896,175,947.80 = 704,832,246.80/x - Step 3: Cross multiply
1,930,783,965.20x = 2,896,175,947.80 × 704,832,246.80 - Step 4: Simplify right side
1,930,783,965.20x = 2,041,318,200,415,993,600 - Step 5: Solve for x
x = 2,041,318,200,415,993,600/1,930,783,965.20 - Step 6: Final answer
x = 1,057,248,370.20
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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.