Finding the Fourth Proportional to 13,302,110.66, 18,357,446.61 and 7,422,258.42
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Solution
The fourth proportional to 13,302,110.66, 18,357,446.61 and 7,422,258.42 is: 10,243,014.53
Step by Step Solution
- Step 1: Write the proportion equation
13,302,110.66 : 18,357,446.61 = 7,422,258.42 : x - Step 2: Convert to fraction form
13,302,110.66/18,357,446.61 = 7,422,258.42/x - Step 3: Cross multiply
13,302,110.66x = 18,357,446.61 × 7,422,258.42 - Step 4: Simplify right side
13,302,110.66x = 136,253,712,670,772.95 - Step 5: Solve for x
x = 136,253,712,670,772.95/13,302,110.66 - Step 6: Final answer
x = 10,243,014.53
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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.