Finding the Fourth Proportional to 15,192,854.08, 20,968,134.46 and 8,664,987.12
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Solution
The fourth proportional to 15,192,854.08, 20,968,134.46 and 8,664,987.12 is: 11,958,820.51
Step by Step Solution
- Step 1: Write the proportion equation
15,192,854.08 : 20,968,134.46 = 8,664,987.12 : x - Step 2: Convert to fraction form
15,192,854.08/20,968,134.46 = 8,664,987.12/x - Step 3: Cross multiply
15,192,854.08x = 20,968,134.46 × 8,664,987.12 - Step 4: Simplify right side
15,192,854.08x = 181,688,615,026,328.16 - Step 5: Solve for x
x = 181,688,615,026,328.16/15,192,854.08 - Step 6: Final answer
x = 11,958,820.51
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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.