Finding the Fourth Proportional to 257,142,929.24, 354,861,917.16 and 145,656,917.48
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Solution
The fourth proportional to 257,142,929.24, 354,861,917.16 and 145,656,917.48 is: 201,009,194.14
Step by Step Solution
- Step 1: Write the proportion equation
257,142,929.24 : 354,861,917.16 = 145,656,917.48 : x - Step 2: Convert to fraction form
257,142,929.24/354,861,917.16 = 145,656,917.48/x - Step 3: Cross multiply
257,142,929.24x = 354,861,917.16 × 145,656,917.48 - Step 4: Simplify right side
257,142,929.24x = 51,688,092,984,568,712 - Step 5: Solve for x
x = 51,688,092,984,568,712/257,142,929.24 - Step 6: Final answer
x = 201,009,194.14
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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.