Finding the Fourth Proportional to 9,477,117.18, 13,078,423.20 and 5,126,201.58
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Solution
The fourth proportional to 9,477,117.18, 13,078,423.20 and 5,126,201.58 is: 7,074,158.99
Step by Step Solution
- Step 1: Write the proportion equation
9,477,117.18 : 13,078,423.20 = 5,126,201.58 : x - Step 2: Convert to fraction form
9,477,117.18/13,078,423.20 = 5,126,201.58/x - Step 3: Cross multiply
9,477,117.18x = 13,078,423.20 × 5,126,201.58 - Step 4: Simplify right side
9,477,117.18x = 67,042,633,671,748.66 - Step 5: Solve for x
x = 67,042,633,671,748.66/9,477,117.18 - Step 6: Final answer
x = 7,074,158.99
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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.