Finding the Fourth Proportional to 329,331,638.13, 494,148,313.14 and 142,642,681.65
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Solution
The fourth proportional to 329,331,638.13, 494,148,313.14 and 142,642,681.65 is: 214,029,362.38
Step by Step Solution
- Step 1: Write the proportion equation
329,331,638.13 : 494,148,313.14 = 142,642,681.65 : x - Step 2: Convert to fraction form
329,331,638.13/494,148,313.14 = 142,642,681.65/x - Step 3: Cross multiply
329,331,638.13x = 494,148,313.14 × 142,642,681.65 - Step 4: Simplify right side
329,331,638.13x = 70,486,640,519,113,536 - Step 5: Solve for x
x = 70,486,640,519,113,536/329,331,638.13 - Step 6: Final answer
x = 214,029,362.38
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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.