Finding the Fourth Proportional to 18,894,584.61, 28,346,374.62 and 6,115,089.31
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Solution
The fourth proportional to 18,894,584.61, 28,346,374.62 and 6,115,089.31 is: 9,174,089.62
Step by Step Solution
- Step 1: Write the proportion equation
18,894,584.61 : 28,346,374.62 = 6,115,089.31 : x - Step 2: Convert to fraction form
18,894,584.61/28,346,374.62 = 6,115,089.31/x - Step 3: Cross multiply
18,894,584.61x = 28,346,374.62 × 6,115,089.31 - Step 4: Simplify right side
18,894,584.61x = 173,340,612,487,404.09 - Step 5: Solve for x
x = 173,340,612,487,404.09/18,894,584.61 - Step 6: Final answer
x = 9,174,089.62
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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.