Finding the Fourth Proportional to 118,889,722.90, 178,334,584.35 and 86,473,134.10
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Solution
The fourth proportional to 118,889,722.90, 178,334,584.35 and 86,473,134.10 is: 129,709,701.15
Step by Step Solution
- Step 1: Write the proportion equation
118,889,722.90 : 178,334,584.35 = 86,473,134.10 : x - Step 2: Convert to fraction form
118,889,722.90/178,334,584.35 = 86,473,134.10/x - Step 3: Cross multiply
118,889,722.90x = 178,334,584.35 × 86,473,134.10 - Step 4: Simplify right side
118,889,722.90x = 15,421,150,427,165,310 - Step 5: Solve for x
x = 15,421,150,427,165,310/118,889,722.90 - Step 6: Final answer
x = 129,709,701.15
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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.