Finding the Fourth Proportional to 159,654,025.80, 239,481,038.70 and 68,954,761.80
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Solution
The fourth proportional to 159,654,025.80, 239,481,038.70 and 68,954,761.80 is: 103,432,142.70
Step by Step Solution
- Step 1: Write the proportion equation
159,654,025.80 : 239,481,038.70 = 68,954,761.80 : x - Step 2: Convert to fraction form
159,654,025.80/239,481,038.70 = 68,954,761.80/x - Step 3: Cross multiply
159,654,025.80x = 239,481,038.70 × 68,954,761.80 - Step 4: Simplify right side
159,654,025.80x = 16,513,357,979,175,080 - Step 5: Solve for x
x = 16,513,357,979,175,080/159,654,025.80 - Step 6: Final answer
x = 103,432,142.70
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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.