Finding the Fourth Proportional to 1,626,894,432.40, 2,245,115,763.40 and 884,338,495.16
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Solution
The fourth proportional to 1,626,894,432.40, 2,245,115,763.40 and 884,338,495.16 is: 1,220,387,909.70
Step by Step Solution
- Step 1: Write the proportion equation
1,626,894,432.40 : 2,245,115,763.40 = 884,338,495.16 : x - Step 2: Convert to fraction form
1,626,894,432.40/2,245,115,763.40 = 884,338,495.16/x - Step 3: Cross multiply
1,626,894,432.40x = 2,245,115,763.40 × 884,338,495.16 - Step 4: Simplify right side
1,626,894,432.40x = 1,985,442,295,665,150,720 - Step 5: Solve for x
x = 1,985,442,295,665,150,720/1,626,894,432.40 - Step 6: Final answer
x = 1,220,387,909.70
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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.