Finding the Fourth Proportional to 485,969,358.13, 670,390,646.74 and 295,179,605.07
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Solution
The fourth proportional to 485,969,358.13, 670,390,646.74 and 295,179,605.07 is: 407,197,785.28
Step by Step Solution
- Step 1: Write the proportion equation
485,969,358.13 : 670,390,646.74 = 295,179,605.07 : x - Step 2: Convert to fraction form
485,969,358.13/670,390,646.74 = 295,179,605.07/x - Step 3: Cross multiply
485,969,358.13x = 670,390,646.74 × 295,179,605.07 - Step 4: Simplify right side
485,969,358.13x = 197,885,646,345,736,192 - Step 5: Solve for x
x = 197,885,646,345,736,192/485,969,358.13 - Step 6: Final answer
x = 407,197,785.28
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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.