Finding the Fourth Proportional to 783,134,737.20, 1,174,702,105.80 and 655,732,753.20
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Solution
The fourth proportional to 783,134,737.20, 1,174,702,105.80 and 655,732,753.20 is: 983,599,129.80
Step by Step Solution
- Step 1: Write the proportion equation
783,134,737.20 : 1,174,702,105.80 = 655,732,753.20 : x - Step 2: Convert to fraction form
783,134,737.20/1,174,702,105.80 = 655,732,753.20/x - Step 3: Cross multiply
783,134,737.20x = 1,174,702,105.80 × 655,732,753.20 - Step 4: Simplify right side
783,134,737.20x = 770,290,646,026,071,680 - Step 5: Solve for x
x = 770,290,646,026,071,680/783,134,737.20 - Step 6: Final answer
x = 983,599,129.80
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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.