Finding the Fourth Proportional to 103,970,574.54, 143,479,427.58 and 56,930,623.14
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Solution
The fourth proportional to 103,970,574.54, 143,479,427.58 and 56,930,623.14 is: 78,564,278.94
Step by Step Solution
- Step 1: Write the proportion equation
103,970,574.54 : 143,479,427.58 = 56,930,623.14 : x - Step 2: Convert to fraction form
103,970,574.54/143,479,427.58 = 56,930,623.14/x - Step 3: Cross multiply
103,970,574.54x = 143,479,427.58 × 56,930,623.14 - Step 4: Simplify right side
103,970,574.54x = 8,168,373,219,899,903 - Step 5: Solve for x
x = 8,168,373,219,899,903/103,970,574.54 - Step 6: Final answer
x = 78,564,278.94
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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.