Finding the Fourth Proportional to 259,395,679.76, 357,930,685.41 and 154,951,580.12
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Solution
The fourth proportional to 259,395,679.76, 357,930,685.41 and 154,951,580.12 is: 213,812,062.44
Step by Step Solution
- Step 1: Write the proportion equation
259,395,679.76 : 357,930,685.41 = 154,951,580.12 : x - Step 2: Convert to fraction form
259,395,679.76/357,930,685.41 = 154,951,580.12/x - Step 3: Cross multiply
259,395,679.76x = 357,930,685.41 × 154,951,580.12 - Step 4: Simplify right side
259,395,679.76x = 55,461,925,277,714,136 - Step 5: Solve for x
x = 55,461,925,277,714,136/259,395,679.76 - Step 6: Final answer
x = 213,812,062.44
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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.