Finding the Fourth Proportional to 20,831,536.05, 31,248,798.74 and 7,184,481.76
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Solution
The fourth proportional to 20,831,536.05, 31,248,798.74 and 7,184,481.76 is: 10,777,238.13
Step by Step Solution
- Step 1: Write the proportion equation
20,831,536.05 : 31,248,798.74 = 7,184,481.76 : x - Step 2: Convert to fraction form
20,831,536.05/31,248,798.74 = 7,184,481.76/x - Step 3: Cross multiply
20,831,536.05x = 31,248,798.74 × 7,184,481.76 - Step 4: Simplify right side
20,831,536.05x = 224,506,424,533,518.56 - Step 5: Solve for x
x = 224,506,424,533,518.56/20,831,536.05 - Step 6: Final answer
x = 10,777,238.13
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.