Finding the Fourth Proportional to 6,688,058.31, 9,230,089.68 and 3,787,965.09
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Solution
The fourth proportional to 6,688,058.31, 9,230,089.68 and 3,787,965.09 is: 5,227,714.21
Step by Step Solution
- Step 1: Write the proportion equation
6,688,058.31 : 9,230,089.68 = 3,787,965.09 : x - Step 2: Convert to fraction form
6,688,058.31/9,230,089.68 = 3,787,965.09/x - Step 3: Cross multiply
6,688,058.31x = 9,230,089.68 × 3,787,965.09 - Step 4: Simplify right side
6,688,058.31x = 34,963,257,485,409.27 - Step 5: Solve for x
x = 34,963,257,485,409.27/6,688,058.31 - Step 6: Final answer
x = 5,227,714.21
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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.