Finding the Fourth Proportional to 83,038,657.20, 124,557,985.80 and 39,897,457.80
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Solution
The fourth proportional to 83,038,657.20, 124,557,985.80 and 39,897,457.80 is: 59,846,186.70
Step by Step Solution
- Step 1: Write the proportion equation
83,038,657.20 : 124,557,985.80 = 39,897,457.80 : x - Step 2: Convert to fraction form
83,038,657.20/124,557,985.80 = 39,897,457.80/x - Step 3: Cross multiply
83,038,657.20x = 124,557,985.80 × 39,897,457.80 - Step 4: Simplify right side
83,038,657.20x = 4,969,546,982,108,499 - Step 5: Solve for x
x = 4,969,546,982,108,499/83,038,657.20 - Step 6: Final answer
x = 59,846,186.70
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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.