Finding the Fourth Proportional to 6,438,528,271.20, 9,657,792,406.80 and 6,397,713,602.40
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Solution
The fourth proportional to 6,438,528,271.20, 9,657,792,406.80 and 6,397,713,602.40 is: 9,596,570,403.60
Step by Step Solution
- Step 1: Write the proportion equation
6,438,528,271.20 : 9,657,792,406.80 = 6,397,713,602.40 : x - Step 2: Convert to fraction form
6,438,528,271.20/9,657,792,406.80 = 6,397,713,602.40/x - Step 3: Cross multiply
6,438,528,271.20x = 9,657,792,406.80 × 6,397,713,602.40 - Step 4: Simplify right side
6,438,528,271.20x = 61,787,789,850,139,787,264 - Step 5: Solve for x
x = 61,787,789,850,139,787,264/6,438,528,271.20 - Step 6: Final answer
x = 9,596,570,403.60
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Similar ratio
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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.