Finding the Fourth Proportional to 87,406,389.90, 120,620,842.20 and 48,248,192.16
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Solution
The fourth proportional to 87,406,389.90, 120,620,842.20 and 48,248,192.16 is: 66,582,518.50
Step by Step Solution
- Step 1: Write the proportion equation
87,406,389.90 : 120,620,842.20 = 48,248,192.16 : x - Step 2: Convert to fraction form
87,406,389.90/120,620,842.20 = 48,248,192.16/x - Step 3: Cross multiply
87,406,389.90x = 120,620,842.20 × 48,248,192.16 - Step 4: Simplify right side
87,406,389.90x = 5,819,737,572,966,637 - Step 5: Solve for x
x = 5,819,737,572,966,637/87,406,389.90 - Step 6: Final answer
x = 66,582,518.50
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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.