Finding the Fourth Proportional to 73,411,862.76, 101,306,051.64 and 40,372,009.92
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Solution
The fourth proportional to 73,411,862.76, 101,306,051.64 and 40,372,009.92 is: 55,712,098.40
Step by Step Solution
- Step 1: Write the proportion equation
73,411,862.76 : 101,306,051.64 = 40,372,009.92 : x - Step 2: Convert to fraction form
73,411,862.76/101,306,051.64 = 40,372,009.92/x - Step 3: Cross multiply
73,411,862.76x = 101,306,051.64 × 40,372,009.92 - Step 4: Simplify right side
73,411,862.76x = 4,089,928,921,766,112.50 - Step 5: Solve for x
x = 4,089,928,921,766,112.50/73,411,862.76 - Step 6: Final answer
x = 55,712,098.40
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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.