Finding the Fourth Proportional to 3,432,134,623.60, 5,148,201,935.40 and 944,990,743.60
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Solution
The fourth proportional to 3,432,134,623.60, 5,148,201,935.40 and 944,990,743.60 is: 1,417,486,115.40
Step by Step Solution
- Step 1: Write the proportion equation
3,432,134,623.60 : 5,148,201,935.40 = 944,990,743.60 : x - Step 2: Convert to fraction form
3,432,134,623.60/5,148,201,935.40 = 944,990,743.60/x - Step 3: Cross multiply
3,432,134,623.60x = 5,148,201,935.40 × 944,990,743.60 - Step 4: Simplify right side
3,432,134,623.60x = 4,865,003,175,136,605,184 - Step 5: Solve for x
x = 4,865,003,175,136,605,184/3,432,134,623.60 - Step 6: Final answer
x = 1,417,486,115.40
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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.