Finding the Fourth Proportional to 6,438,528,077.30, 9,657,792,115.95 and 4,479,423,974.90
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Solution
The fourth proportional to 6,438,528,077.30, 9,657,792,115.95 and 4,479,423,974.90 is: 6,719,135,962.35
Step by Step Solution
- Step 1: Write the proportion equation
6,438,528,077.30 : 9,657,792,115.95 = 4,479,423,974.90 : x - Step 2: Convert to fraction form
6,438,528,077.30/9,657,792,115.95 = 4,479,423,974.90/x - Step 3: Cross multiply
6,438,528,077.30x = 9,657,792,115.95 × 4,479,423,974.90 - Step 4: Simplify right side
6,438,528,077.30x = 43,261,345,548,786,630,656 - Step 5: Solve for x
x = 43,261,345,548,786,630,656/6,438,528,077.30 - Step 6: Final answer
x = 6,719,135,962.35
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.