Finding the Fourth Proportional to 266,242,315.68, 399,344,532.48 and 81,990,578.88
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Solution
The fourth proportional to 266,242,315.68, 399,344,532.48 and 81,990,578.88 is: 122,980,035.34
Step by Step Solution
- Step 1: Write the proportion equation
266,242,315.68 : 399,344,532.48 = 81,990,578.88 : x - Step 2: Convert to fraction form
266,242,315.68/399,344,532.48 = 81,990,578.88/x - Step 3: Cross multiply
266,242,315.68x = 399,344,532.48 × 81,990,578.88 - Step 4: Simplify right side
266,242,315.68x = 32,742,489,390,598,160 - Step 5: Solve for x
x = 32,742,489,390,598,160/266,242,315.68 - Step 6: Final answer
x = 122,980,035.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.