Finding the Fourth Proportional to 970,882,523.48, 1,340,182,235.63 and 636,376,602.68
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Solution
The fourth proportional to 970,882,523.48, 1,340,182,235.63 and 636,376,602.68 is: 878,438,531.39
Step by Step Solution
- Step 1: Write the proportion equation
970,882,523.48 : 1,340,182,235.63 = 636,376,602.68 : x - Step 2: Convert to fraction form
970,882,523.48/1,340,182,235.63 = 636,376,602.68/x - Step 3: Cross multiply
970,882,523.48x = 1,340,182,235.63 × 636,376,602.68 - Step 4: Simplify right side
970,882,523.48x = 852,860,618,072,423,808 - Step 5: Solve for x
x = 852,860,618,072,423,808/970,882,523.48 - Step 6: Final answer
x = 878,438,531.39
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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.