Finding the Fourth Proportional to 332,487,128.80, 498,739,246.80 and 157,569,119.20
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Solution
The fourth proportional to 332,487,128.80, 498,739,246.80 and 157,569,119.20 is: 236,357,732.44
Step by Step Solution
- Step 1: Write the proportion equation
332,487,128.80 : 498,739,246.80 = 157,569,119.20 : x - Step 2: Convert to fraction form
332,487,128.80/498,739,246.80 = 157,569,119.20/x - Step 3: Cross multiply
332,487,128.80x = 498,739,246.80 × 157,569,119.20 - Step 4: Simplify right side
332,487,128.80x = 78,585,903,828,747,408 - Step 5: Solve for x
x = 78,585,903,828,747,408/332,487,128.80 - Step 6: Final answer
x = 236,357,732.44
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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.