Finding the Fourth Proportional to 19,442,811.12, 26,831,846.79 and 11,182,860.21
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Solution
The fourth proportional to 19,442,811.12, 26,831,846.79 and 11,182,860.21 is: 15,432,788.50
Step by Step Solution
- Step 1: Write the proportion equation
19,442,811.12 : 26,831,846.79 = 11,182,860.21 : x - Step 2: Convert to fraction form
19,442,811.12/26,831,846.79 = 11,182,860.21/x - Step 3: Cross multiply
19,442,811.12x = 26,831,846.79 × 11,182,860.21 - Step 4: Simplify right side
19,442,811.12x = 300,056,791,828,707.25 - Step 5: Solve for x
x = 300,056,791,828,707.25/19,442,811.12 - Step 6: Final answer
x = 15,432,788.50
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1.5x scale
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.