Finding the Fourth Proportional to 130,440,036.24, 180,009,486.41 and 71,705,176.92
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Solution
The fourth proportional to 130,440,036.24, 180,009,486.41 and 71,705,176.92 is: 98,954,373.53
Step by Step Solution
- Step 1: Write the proportion equation
130,440,036.24 : 180,009,486.41 = 71,705,176.92 : x - Step 2: Convert to fraction form
130,440,036.24/180,009,486.41 = 71,705,176.92/x - Step 3: Cross multiply
130,440,036.24x = 180,009,486.41 × 71,705,176.92 - Step 4: Simplify right side
130,440,036.24x = 12,907,612,069,948,860 - Step 5: Solve for x
x = 12,907,612,069,948,860/130,440,036.24 - Step 6: Final answer
x = 98,954,373.53
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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.