Finding the Fourth Proportional to 3,970,299,746.70, 5,955,673,568.85 and 1,210,018,812.30
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Solution
The fourth proportional to 3,970,299,746.70, 5,955,673,568.85 and 1,210,018,812.30 is: 1,815,096,470.79
Step by Step Solution
- Step 1: Write the proportion equation
3,970,299,746.70 : 5,955,673,568.85 = 1,210,018,812.30 : x - Step 2: Convert to fraction form
3,970,299,746.70/5,955,673,568.85 = 1,210,018,812.30/x - Step 3: Cross multiply
3,970,299,746.70x = 5,955,673,568.85 × 1,210,018,812.30 - Step 4: Simplify right side
3,970,299,746.70x = 7,206,477,058,226,379,776 - Step 5: Solve for x
x = 7,206,477,058,226,379,776/3,970,299,746.70 - Step 6: Final answer
x = 1,815,096,470.79
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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.