Finding the Fourth Proportional to 117,956,117.80, 176,934,176.70 and 66,937,781.80
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Solution
The fourth proportional to 117,956,117.80, 176,934,176.70 and 66,937,781.80 is: 100,406,672.70
Step by Step Solution
- Step 1: Write the proportion equation
117,956,117.80 : 176,934,176.70 = 66,937,781.80 : x - Step 2: Convert to fraction form
117,956,117.80/176,934,176.70 = 66,937,781.80/x - Step 3: Cross multiply
117,956,117.80x = 176,934,176.70 × 66,937,781.80 - Step 4: Simplify right side
117,956,117.80x = 11,843,581,312,907,242 - Step 5: Solve for x
x = 11,843,581,312,907,242/117,956,117.80 - Step 6: Final answer
x = 100,406,672.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.