Finding the Fourth Proportional to 9,138,822.74, 12,617,309.67 and 5,881,298.66
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Solution
The fourth proportional to 9,138,822.74, 12,617,309.67 and 5,881,298.66 is: 8,119,882.46
Step by Step Solution
- Step 1: Write the proportion equation
9,138,822.74 : 12,617,309.67 = 5,881,298.66 : x - Step 2: Convert to fraction form
9,138,822.74/12,617,309.67 = 5,881,298.66/x - Step 3: Cross multiply
9,138,822.74x = 12,617,309.67 × 5,881,298.66 - Step 4: Simplify right side
9,138,822.74x = 74,206,166,454,976.05 - Step 5: Solve for x
x = 74,206,166,454,976.05/9,138,822.74 - Step 6: Final answer
x = 8,119,882.46
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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.