Finding the Fourth Proportional to 1,567,448,974.35, 2,163,079,937.68 and 862,600,955.79
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Solution
The fourth proportional to 1,567,448,974.35, 2,163,079,937.68 and 862,600,955.79 is: 1,190,389,513.30
Step by Step Solution
- Step 1: Write the proportion equation
1,567,448,974.35 : 2,163,079,937.68 = 862,600,955.79 : x - Step 2: Convert to fraction form
1,567,448,974.35/2,163,079,937.68 = 862,600,955.79/x - Step 3: Cross multiply
1,567,448,974.35x = 2,163,079,937.68 × 862,600,955.79 - Step 4: Simplify right side
1,567,448,974.35x = 1,865,874,821,692,941,312 - Step 5: Solve for x
x = 1,865,874,821,692,941,312/1,567,448,974.35 - Step 6: Final answer
x = 1,190,389,513.30
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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.