Finding the Fourth Proportional to 970,882,530.08, 1,340,182,244.74 and 636,376,609.26
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Solution
The fourth proportional to 970,882,530.08, 1,340,182,244.74 and 636,376,609.26 is: 878,438,540.48
Step by Step Solution
- Step 1: Write the proportion equation
970,882,530.08 : 1,340,182,244.74 = 636,376,609.26 : x - Step 2: Convert to fraction form
970,882,530.08/1,340,182,244.74 = 636,376,609.26/x - Step 3: Cross multiply
970,882,530.08x = 1,340,182,244.74 × 636,376,609.26 - Step 4: Simplify right side
970,882,530.08x = 852,860,632,698,096,640 - Step 5: Solve for x
x = 852,860,632,698,096,640/970,882,530.08 - Step 6: Final answer
x = 878,438,540.48
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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.