Finding the Fourth Proportional to 86,314,216.84, 129,489,987.66 and 45,918,829.96
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Solution
The fourth proportional to 86,314,216.84, 129,489,987.66 and 45,918,829.96 is: 68,888,173.26
Step by Step Solution
- Step 1: Write the proportion equation
86,314,216.84 : 129,489,987.66 = 45,918,829.96 : x - Step 2: Convert to fraction form
86,314,216.84/129,489,987.66 = 45,918,829.96/x - Step 3: Cross multiply
86,314,216.84x = 129,489,987.66 × 45,918,829.96 - Step 4: Simplify right side
86,314,216.84x = 5,946,028,724,882,038 - Step 5: Solve for x
x = 5,946,028,724,882,038/86,314,216.84 - Step 6: Final answer
x = 68,888,173.26
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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.