Finding the Fourth Proportional to 257,549,078.70, 386,323,618.05 and 155,260,464.30
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Solution
The fourth proportional to 257,549,078.70, 386,323,618.05 and 155,260,464.30 is: 232,890,696.45
Step by Step Solution
- Step 1: Write the proportion equation
257,549,078.70 : 386,323,618.05 = 155,260,464.30 : x - Step 2: Convert to fraction form
257,549,078.70/386,323,618.05 = 155,260,464.30/x - Step 3: Cross multiply
257,549,078.70x = 386,323,618.05 × 155,260,464.30 - Step 4: Simplify right side
257,549,078.70x = 59,980,784,308,498,864 - Step 5: Solve for x
x = 59,980,784,308,498,864/257,549,078.70 - Step 6: Final answer
x = 232,890,696.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.