Finding the Fourth Proportional to 13,307,712.20, 19,968,480.30 and 6,216,000.20
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Solution
The fourth proportional to 13,307,712.20, 19,968,480.30 and 6,216,000.20 is: 9,327,228.88
Step by Step Solution
- Step 1: Write the proportion equation
13,307,712.20 : 19,968,480.30 = 6,216,000.20 : x - Step 2: Convert to fraction form
13,307,712.20/19,968,480.30 = 6,216,000.20/x - Step 3: Cross multiply
13,307,712.20x = 19,968,480.30 × 6,216,000.20 - Step 4: Simplify right side
13,307,712.20x = 124,124,077,538,496.06 - Step 5: Solve for x
x = 124,124,077,538,496.06/13,307,712.20 - Step 6: Final answer
x = 9,327,228.88
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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.