Finding the Fourth Proportional to 42,497,147.70, 63,745,721.55 and 13,763,904.30
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Solution
The fourth proportional to 42,497,147.70, 63,745,721.55 and 13,763,904.30 is: 20,645,856.45
Step by Step Solution
- Step 1: Write the proportion equation
42,497,147.70 : 63,745,721.55 = 13,763,904.30 : x - Step 2: Convert to fraction form
42,497,147.70/63,745,721.55 = 13,763,904.30/x - Step 3: Cross multiply
42,497,147.70x = 63,745,721.55 × 13,763,904.30 - Step 4: Simplify right side
42,497,147.70x = 877,390,010,948,647.62 - Step 5: Solve for x
x = 877,390,010,948,647.62/42,497,147.70 - Step 6: Final answer
x = 20,645,856.45
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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.