Finding the Fourth Proportional to 68,406,237.84, 94,402,135.62 and 39,036,985.68
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Solution
The fourth proportional to 68,406,237.84, 94,402,135.62 and 39,036,985.68 is: 53,871,911.87
Step by Step Solution
- Step 1: Write the proportion equation
68,406,237.84 : 94,402,135.62 = 39,036,985.68 : x - Step 2: Convert to fraction form
68,406,237.84/94,402,135.62 = 39,036,985.68/x - Step 3: Cross multiply
68,406,237.84x = 94,402,135.62 × 39,036,985.68 - Step 4: Simplify right side
68,406,237.84x = 3,685,174,816,359,358 - Step 5: Solve for x
x = 3,685,174,816,359,358/68,406,237.84 - Step 6: Final answer
x = 53,871,911.87
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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.