Finding the Fourth Proportional to 4,913,373,830.88, 6,780,455,385.84 and 2,685,714,915.36
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Solution
The fourth proportional to 4,913,373,830.88, 6,780,455,385.84 and 2,685,714,915.36 is: 3,706,286,309.47
Step by Step Solution
- Step 1: Write the proportion equation
4,913,373,830.88 : 6,780,455,385.84 = 2,685,714,915.36 : x - Step 2: Convert to fraction form
4,913,373,830.88/6,780,455,385.84 = 2,685,714,915.36/x - Step 3: Cross multiply
4,913,373,830.88x = 6,780,455,385.84 × 2,685,714,915.36 - Step 4: Simplify right side
4,913,373,830.88x = 18,210,370,162,683,533,312 - Step 5: Solve for x
x = 18,210,370,162,683,533,312/4,913,373,830.88 - Step 6: Final answer
x = 3,706,286,309.47
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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.