Finding the Fourth Proportional to 7,909,682.58, 10,915,263.66 and 4,646,794.74
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Solution
The fourth proportional to 7,909,682.58, 10,915,263.66 and 4,646,794.74 is: 6,412,518.99
Step by Step Solution
- Step 1: Write the proportion equation
7,909,682.58 : 10,915,263.66 = 4,646,794.74 : x - Step 2: Convert to fraction form
7,909,682.58/10,915,263.66 = 4,646,794.74/x - Step 3: Cross multiply
7,909,682.58x = 10,915,263.66 × 4,646,794.74 - Step 4: Simplify right side
7,909,682.58x = 50,720,989,761,001.15 - Step 5: Solve for x
x = 50,720,989,761,001.15/7,909,682.58 - Step 6: Final answer
x = 6,412,518.99
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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.