Finding the Fourth Proportional to 5,640,402,437.60, 8,455,228,885.20 and 4,396,142,904.80
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Solution
The fourth proportional to 5,640,402,437.60, 8,455,228,885.20 and 4,396,142,904.80 is: 6,590,025,247.91
Step by Step Solution
- Step 1: Write the proportion equation
5,640,402,437.60 : 8,455,228,885.20 = 4,396,142,904.80 : x - Step 2: Convert to fraction form
5,640,402,437.60/8,455,228,885.20 = 4,396,142,904.80/x - Step 3: Cross multiply
5,640,402,437.60x = 8,455,228,885.20 × 4,396,142,904.80 - Step 4: Simplify right side
5,640,402,437.60x = 37,170,394,472,131,993,600 - Step 5: Solve for x
x = 37,170,394,472,131,993,600/5,640,402,437.60 - Step 6: Final answer
x = 6,590,025,247.91
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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.