Finding the Fourth Proportional to 28,430,387.12, 42,645,547.56 and 9,261,113.24
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Solution
The fourth proportional to 28,430,387.12, 42,645,547.56 and 9,261,113.24 is: 13,891,659.07
Step by Step Solution
- Step 1: Write the proportion equation
28,430,387.12 : 42,645,547.56 = 9,261,113.24 : x - Step 2: Convert to fraction form
28,430,387.12/42,645,547.56 = 9,261,113.24/x - Step 3: Cross multiply
28,430,387.12x = 42,645,547.56 × 9,261,113.24 - Step 4: Simplify right side
28,430,387.12x = 394,945,245,134,965.75 - Step 5: Solve for x
x = 394,945,245,134,965.75/28,430,387.12 - Step 6: Final answer
x = 13,891,659.07
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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.