Finding the Fourth Proportional to 6,138,661.64, 8,471,501.93 and 3,385,389.02
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Solution
The fourth proportional to 6,138,661.64, 8,471,501.93 and 3,385,389.02 is: 4,671,918.94
Step by Step Solution
- Step 1: Write the proportion equation
6,138,661.64 : 8,471,501.93 = 3,385,389.02 : x - Step 2: Convert to fraction form
6,138,661.64/8,471,501.93 = 3,385,389.02/x - Step 3: Cross multiply
6,138,661.64x = 8,471,501.93 × 3,385,389.02 - Step 4: Simplify right side
6,138,661.64x = 28,679,329,599,803.87 - Step 5: Solve for x
x = 28,679,329,599,803.87/6,138,661.64 - Step 6: Final answer
x = 4,671,918.94
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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.