Finding the Fourth Proportional to 47,769,854.90, 71,654,782.35 and 28,590,739.70
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Solution
The fourth proportional to 47,769,854.90, 71,654,782.35 and 28,590,739.70 is: 42,886,109.55
Step by Step Solution
- Step 1: Write the proportion equation
47,769,854.90 : 71,654,782.35 = 28,590,739.70 : x - Step 2: Convert to fraction form
47,769,854.90/71,654,782.35 = 28,590,739.70/x - Step 3: Cross multiply
47,769,854.90x = 71,654,782.35 × 28,590,739.70 - Step 4: Simplify right side
47,769,854.90x = 2,048,663,230,429,004 - Step 5: Solve for x
x = 2,048,663,230,429,004/47,769,854.90 - Step 6: Final answer
x = 42,886,109.55
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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.