Finding the Fourth Proportional to 54,292,345.65, 74,922,909.12 and 40,415,756.13
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Solution
The fourth proportional to 54,292,345.65, 74,922,909.12 and 40,415,756.13 is: 55,773,350.50
Step by Step Solution
- Step 1: Write the proportion equation
54,292,345.65 : 74,922,909.12 = 40,415,756.13 : x - Step 2: Convert to fraction form
54,292,345.65/74,922,909.12 = 40,415,756.13/x - Step 3: Cross multiply
54,292,345.65x = 74,922,909.12 × 40,415,756.13 - Step 4: Simplify right side
54,292,345.65x = 3,028,066,023,544,073.50 - Step 5: Solve for x
x = 3,028,066,023,544,073.50/54,292,345.65 - Step 6: Final answer
x = 55,773,350.50
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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.