Finding the Fourth Proportional to 159,671,659.80, 239,507,489.70 and 143,547,346.20
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Solution
The fourth proportional to 159,671,659.80, 239,507,489.70 and 143,547,346.20 is: 215,321,019.30
Step by Step Solution
- Step 1: Write the proportion equation
159,671,659.80 : 239,507,489.70 = 143,547,346.20 : x - Step 2: Convert to fraction form
159,671,659.80/239,507,489.70 = 143,547,346.20/x - Step 3: Cross multiply
159,671,659.80x = 239,507,489.70 × 143,547,346.20 - Step 4: Simplify right side
159,671,659.80x = 34,380,664,541,458,828 - Step 5: Solve for x
x = 34,380,664,541,458,828/159,671,659.80 - Step 6: Final answer
x = 215,321,019.30
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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.