Finding the Fourth Proportional to 257,101,331.39, 354,908,410.04 and 173,582,600.99
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Solution
The fourth proportional to 257,101,331.39, 354,908,410.04 and 173,582,600.99 is: 239,617,292.51
Step by Step Solution
- Step 1: Write the proportion equation
257,101,331.39 : 354,908,410.04 = 173,582,600.99 : x - Step 2: Convert to fraction form
257,101,331.39/354,908,410.04 = 173,582,600.99/x - Step 3: Cross multiply
257,101,331.39x = 354,908,410.04 × 173,582,600.99 - Step 4: Simplify right side
257,101,331.39x = 61,605,924,927,968,640 - Step 5: Solve for x
x = 61,605,924,927,968,640/257,101,331.39 - Step 6: Final answer
x = 239,617,292.51
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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.