Finding the Fourth Proportional to 62,438,766.90, 86,155,219.78 and 39,217,353.99
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Solution
The fourth proportional to 62,438,766.90, 86,155,219.78 and 39,217,353.99 is: 54,113,492.63
Step by Step Solution
- Step 1: Write the proportion equation
62,438,766.90 : 86,155,219.78 = 39,217,353.99 : x - Step 2: Convert to fraction form
62,438,766.90/86,155,219.78 = 39,217,353.99/x - Step 3: Cross multiply
62,438,766.90x = 86,155,219.78 × 39,217,353.99 - Step 4: Simplify right side
62,438,766.90x = 3,378,779,752,198,510 - Step 5: Solve for x
x = 3,378,779,752,198,510/62,438,766.90 - Step 6: Final answer
x = 54,113,492.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.