Finding the Fourth Proportional to 38,518,857.99, 57,742,118.87 and 12,941,980.47
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Solution
The fourth proportional to 38,518,857.99, 57,742,118.87 and 12,941,980.47 is: 19,400,818.55
Step by Step Solution
- Step 1: Write the proportion equation
38,518,857.99 : 57,742,118.87 = 12,941,980.47 : x - Step 2: Convert to fraction form
38,518,857.99/57,742,118.87 = 12,941,980.47/x - Step 3: Cross multiply
38,518,857.99x = 57,742,118.87 × 12,941,980.47 - Step 4: Simplify right side
38,518,857.99x = 747,297,374,647,248.62 - Step 5: Solve for x
x = 747,297,374,647,248.62/38,518,857.99 - Step 6: Final answer
x = 19,400,818.55
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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.