Finding the Fourth Proportional to 74,739,934.84, 103,140,967.64 and 41,698,218.06
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Solution
The fourth proportional to 74,739,934.84, 103,140,967.64 and 41,698,218.06 is: 57,543,461.45
Step by Step Solution
- Step 1: Write the proportion equation
74,739,934.84 : 103,140,967.64 = 41,698,218.06 : x - Step 2: Convert to fraction form
74,739,934.84/103,140,967.64 = 41,698,218.06/x - Step 3: Cross multiply
74,739,934.84x = 103,140,967.64 × 41,698,218.06 - Step 4: Simplify right side
74,739,934.84x = 4,300,794,559,572,124 - Step 5: Solve for x
x = 4,300,794,559,572,124/74,739,934.84 - Step 6: Final answer
x = 57,543,461.45
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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.