Finding the Fourth Proportional to 18,742,768.74, 28,117,987.62 and 6,445,134.93
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Solution
The fourth proportional to 18,742,768.74, 28,117,987.62 and 6,445,134.93 is: 9,669,020.98
Step by Step Solution
- Step 1: Write the proportion equation
18,742,768.74 : 28,117,987.62 = 6,445,134.93 : x - Step 2: Convert to fraction form
18,742,768.74/28,117,987.62 = 6,445,134.93/x - Step 3: Cross multiply
18,742,768.74x = 28,117,987.62 × 6,445,134.93 - Step 4: Simplify right side
18,742,768.74x = 181,224,224,170,969.56 - Step 5: Solve for x
x = 181,224,224,170,969.56/18,742,768.74 - Step 6: Final answer
x = 9,669,020.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.