Finding the Fourth Proportional to 86,178,386.64, 118,787,246.46 and 58,290,926.52
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Solution
The fourth proportional to 86,178,386.64, 118,787,246.46 and 58,290,926.52 is: 80,347,508.52
Step by Step Solution
- Step 1: Write the proportion equation
86,178,386.64 : 118,787,246.46 = 58,290,926.52 : x - Step 2: Convert to fraction form
86,178,386.64/118,787,246.46 = 58,290,926.52/x - Step 3: Cross multiply
86,178,386.64x = 118,787,246.46 × 58,290,926.52 - Step 4: Simplify right side
86,178,386.64x = 6,924,218,654,912,990 - Step 5: Solve for x
x = 6,924,218,654,912,990/86,178,386.64 - Step 6: Final answer
x = 80,347,508.52
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.