Finding the Fourth Proportional to 103,980,718.04, 143,497,874.84 and 57,570,971.94
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Solution
The fourth proportional to 103,980,718.04, 143,497,874.84 and 57,570,971.94 is: 79,450,423.90
Step by Step Solution
- Step 1: Write the proportion equation
103,980,718.04 : 143,497,874.84 = 57,570,971.94 : x - Step 2: Convert to fraction form
103,980,718.04/143,497,874.84 = 57,570,971.94/x - Step 3: Cross multiply
103,980,718.04x = 143,497,874.84 × 57,570,971.94 - Step 4: Simplify right side
103,980,718.04x = 8,261,312,125,575,417 - Step 5: Solve for x
x = 8,261,312,125,575,417/103,980,718.04 - Step 6: Final answer
x = 79,450,423.90
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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.