Finding the Fourth Proportional to 706,642,866.65, 975,174,372.24 and 389,132,638.49
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Solution
The fourth proportional to 706,642,866.65, 975,174,372.24 and 389,132,638.49 is: 537,007,014.95
Step by Step Solution
- Step 1: Write the proportion equation
706,642,866.65 : 975,174,372.24 = 389,132,638.49 : x - Step 2: Convert to fraction form
706,642,866.65/975,174,372.24 = 389,132,638.49/x - Step 3: Cross multiply
706,642,866.65x = 975,174,372.24 × 389,132,638.49 - Step 4: Simplify right side
706,642,866.65x = 379,472,176,457,580,608 - Step 5: Solve for x
x = 379,472,176,457,580,608/706,642,866.65 - Step 6: Final answer
x = 537,007,014.95
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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.