Finding the Fourth Proportional to 8,999,506,397.20, 12,419,314,508.52 and 5,382,530,073.08
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Solution
The fourth proportional to 8,999,506,397.20, 12,419,314,508.52 and 5,382,530,073.08 is: 7,427,888,917.32
Step by Step Solution
- Step 1: Write the proportion equation
8,999,506,397.20 : 12,419,314,508.52 = 5,382,530,073.08 : x - Step 2: Convert to fraction form
8,999,506,397.20/12,419,314,508.52 = 5,382,530,073.08/x - Step 3: Cross multiply
8,999,506,397.20x = 12,419,314,508.52 × 5,382,530,073.08 - Step 4: Simplify right side
8,999,506,397.20x = 66,847,333,829,147,664,384 - Step 5: Solve for x
x = 66,847,333,829,147,664,384/8,999,506,397.20 - Step 6: Final answer
x = 7,427,888,917.32
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1.5x scale
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.