Finding the Fourth Proportional to 1,370,258,705.99, 1,890,952,246.19 and 743,727,132.29
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Solution
The fourth proportional to 1,370,258,705.99, 1,890,952,246.19 and 743,727,132.29 is: 1,026,340,854.62
Step by Step Solution
- Step 1: Write the proportion equation
1,370,258,705.99 : 1,890,952,246.19 = 743,727,132.29 : x - Step 2: Convert to fraction form
1,370,258,705.99/1,890,952,246.19 = 743,727,132.29/x - Step 3: Cross multiply
1,370,258,705.99x = 1,890,952,246.19 × 743,727,132.29 - Step 4: Simplify right side
1,370,258,705.99x = 1,406,352,491,352,504,064 - Step 5: Solve for x
x = 1,406,352,491,352,504,064/1,370,258,705.99 - Step 6: Final answer
x = 1,026,340,854.62
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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.