Finding the Fourth Proportional to 857,571,477.49, 1,182,781,454.07 and 620,306,695.18
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Solution
The fourth proportional to 857,571,477.49, 1,182,781,454.07 and 620,306,695.18 is: 855,540,644.89
Step by Step Solution
- Step 1: Write the proportion equation
857,571,477.49 : 1,182,781,454.07 = 620,306,695.18 : x - Step 2: Convert to fraction form
857,571,477.49/1,182,781,454.07 = 620,306,695.18/x - Step 3: Cross multiply
857,571,477.49x = 1,182,781,454.07 × 620,306,695.18 - Step 4: Simplify right side
857,571,477.49x = 733,687,254,894,356,608 - Step 5: Solve for x
x = 733,687,254,894,356,608/857,571,477.49 - Step 6: Final answer
x = 855,540,644.89
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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.