Finding the Fourth Proportional to 2,918,175,833.86, 4,377,717,247.11 and 979,932,562.18
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Solution
The fourth proportional to 2,918,175,833.86, 4,377,717,247.11 and 979,932,562.18 is: 1,470,051,128.75
Step by Step Solution
- Step 1: Write the proportion equation
2,918,175,833.86 : 4,377,717,247.11 = 979,932,562.18 : x - Step 2: Convert to fraction form
2,918,175,833.86/4,377,717,247.11 = 979,932,562.18/x - Step 3: Cross multiply
2,918,175,833.86x = 4,377,717,247.11 × 979,932,562.18 - Step 4: Simplify right side
2,918,175,833.86x = 4,289,867,678,460,078,080 - Step 5: Solve for x
x = 4,289,867,678,460,078,080/2,918,175,833.86 - Step 6: Final answer
x = 1,470,051,128.75
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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.