Finding the Fourth Proportional to 805,652,215.82, 1,111,393,091.51 and 470,906,040.99
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Solution
The fourth proportional to 805,652,215.82, 1,111,393,091.51 and 470,906,040.99 is: 649,612,463.59
Step by Step Solution
- Step 1: Write the proportion equation
805,652,215.82 : 1,111,393,091.51 = 470,906,040.99 : x - Step 2: Convert to fraction form
805,652,215.82/1,111,393,091.51 = 470,906,040.99/x - Step 3: Cross multiply
805,652,215.82x = 1,111,393,091.51 × 470,906,040.99 - Step 4: Simplify right side
805,652,215.82x = 523,361,720,712,850,560 - Step 5: Solve for x
x = 523,361,720,712,850,560/805,652,215.82 - Step 6: Final answer
x = 649,612,463.59
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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.