Finding the Fourth Proportional to 1,641,730,416.99, 2,265,590,160.19 and 889,044,890.20
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Solution
The fourth proportional to 1,641,730,416.99, 2,265,590,160.19 and 889,044,890.20 is: 1,226,883,131.58
Step by Step Solution
- Step 1: Write the proportion equation
1,641,730,416.99 : 2,265,590,160.19 = 889,044,890.20 : x - Step 2: Convert to fraction form
1,641,730,416.99/2,265,590,160.19 = 889,044,890.20/x - Step 3: Cross multiply
1,641,730,416.99x = 2,265,590,160.19 × 889,044,890.20 - Step 4: Simplify right side
1,641,730,416.99x = 2,014,211,355,217,205,760 - Step 5: Solve for x
x = 2,014,211,355,217,205,760/1,641,730,416.99 - Step 6: Final answer
x = 1,226,883,131.58
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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.