Finding the Fourth Proportional to 720,927,708.98, 994,899,800.98 and 407,708,762
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Solution
The fourth proportional to 720,927,708.98, 994,899,800.98 and 407,708,762 is: 562,649,154.86
Step by Step Solution
- Step 1: Write the proportion equation
720,927,708.98 : 994,899,800.98 = 407,708,762 : x - Step 2: Convert to fraction form
720,927,708.98/994,899,800.98 = 407,708,762/x - Step 3: Cross multiply
720,927,708.98x = 994,899,800.98 × 407,708,762 - Step 4: Simplify right side
720,927,708.98x = 405,629,366,169,563,648 - Step 5: Solve for x
x = 405,629,366,169,563,648/720,927,708.98 - Step 6: Final answer
x = 562,649,154.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.