Finding the Fourth Proportional to 999,842,543.70, 1,396,335,823.50 and 999,842,543.70
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Solution
The fourth proportional to 999,842,543.70, 1,396,335,823.50 and 999,842,543.70 is: 1,396,335,823.50
Step by Step Solution
- Step 1: Write the proportion equation
999,842,543.70 : 1,396,335,823.50 = 999,842,543.70 : x - Step 2: Convert to fraction form
999,842,543.70/1,396,335,823.50 = 999,842,543.70/x - Step 3: Cross multiply
999,842,543.70x = 1,396,335,823.50 × 999,842,543.70 - Step 4: Simplify right side
999,842,543.70x = 1,396,115,961,627,674,368 - Step 5: Solve for x
x = 1,396,115,961,627,674,368/999,842,543.70 - Step 6: Final answer
x = 1,396,335,823.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.