Finding the Fourth Proportional to 841,761,840.99, 1,161,584,483.87 and 465,396,669.80
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Solution
The fourth proportional to 841,761,840.99, 1,161,584,483.87 and 465,396,669.80 is: 642,221,498.00
Step by Step Solution
- Step 1: Write the proportion equation
841,761,840.99 : 1,161,584,483.87 = 465,396,669.80 : x - Step 2: Convert to fraction form
841,761,840.99/1,161,584,483.87 = 465,396,669.80/x - Step 3: Cross multiply
841,761,840.99x = 1,161,584,483.87 × 465,396,669.80 - Step 4: Simplify right side
841,761,840.99x = 540,597,550,479,805,376 - Step 5: Solve for x
x = 540,597,550,479,805,376/841,761,840.99 - Step 6: Final answer
x = 642,221,498.00
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1.5x scale
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.