Finding the Fourth Proportional to 369,207,372.74, 509,663,055.76 and 230,046,889.68
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Solution
The fourth proportional to 369,207,372.74, 509,663,055.76 and 230,046,889.68 is: 317,562,457.90
Step by Step Solution
- Step 1: Write the proportion equation
369,207,372.74 : 509,663,055.76 = 230,046,889.68 : x - Step 2: Convert to fraction form
369,207,372.74/509,663,055.76 = 230,046,889.68/x - Step 3: Cross multiply
369,207,372.74x = 509,663,055.76 × 230,046,889.68 - Step 4: Simplify right side
369,207,372.74x = 117,246,400,761,817,296 - Step 5: Solve for x
x = 117,246,400,761,817,296/369,207,372.74 - Step 6: Final answer
x = 317,562,457.90
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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.