Finding the Fourth Proportional to 159,644,535.70, 239,466,803.55 and 121,380,783.70
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Solution
The fourth proportional to 159,644,535.70, 239,466,803.55 and 121,380,783.70 is: 182,071,175.55
Step by Step Solution
- Step 1: Write the proportion equation
159,644,535.70 : 239,466,803.55 = 121,380,783.70 : x - Step 2: Convert to fraction form
159,644,535.70/239,466,803.55 = 121,380,783.70/x - Step 3: Cross multiply
159,644,535.70x = 239,466,803.55 × 121,380,783.70 - Step 4: Simplify right side
159,644,535.70x = 29,066,668,285,032,944 - Step 5: Solve for x
x = 29,066,668,285,032,944/159,644,535.70 - Step 6: Final answer
x = 182,071,175.55
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1.5x scale
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.