Finding the Fourth Proportional to 92,292,334.20, 138,438,501.30 and 38,432,647.80
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Solution
The fourth proportional to 92,292,334.20, 138,438,501.30 and 38,432,647.80 is: 57,648,971.70
Step by Step Solution
- Step 1: Write the proportion equation
92,292,334.20 : 138,438,501.30 = 38,432,647.80 : x - Step 2: Convert to fraction form
92,292,334.20/138,438,501.30 = 38,432,647.80/x - Step 3: Cross multiply
92,292,334.20x = 138,438,501.30 × 38,432,647.80 - Step 4: Simplify right side
92,292,334.20x = 5,320,558,162,422,742 - Step 5: Solve for x
x = 5,320,558,162,422,742/92,292,334.20 - Step 6: Final answer
x = 57,648,971.70
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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.