Finding the Fourth Proportional to 611,827,394.13, 917,087,599.14 and 348,945,970.05
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Solution
The fourth proportional to 611,827,394.13, 917,087,599.14 and 348,945,970.05 is: 523,046,246.33
Step by Step Solution
- Step 1: Write the proportion equation
611,827,394.13 : 917,087,599.14 = 348,945,970.05 : x - Step 2: Convert to fraction form
611,827,394.13/917,087,599.14 = 348,945,970.05/x - Step 3: Cross multiply
611,827,394.13x = 917,087,599.14 × 348,945,970.05 - Step 4: Simplify right side
611,827,394.13x = 320,014,021,902,732,864 - Step 5: Solve for x
x = 320,014,021,902,732,864/611,827,394.13 - Step 6: Final answer
x = 523,046,246.33
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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.