Finding the Fourth Proportional to 3,953,266.13, 5,455,510.97 and 2,142,430.13
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Solution
The fourth proportional to 3,953,266.13, 5,455,510.97 and 2,142,430.13 is: 2,956,555.58
Step by Step Solution
- Step 1: Write the proportion equation
3,953,266.13 : 5,455,510.97 = 2,142,430.13 : x - Step 2: Convert to fraction form
3,953,266.13/5,455,510.97 = 2,142,430.13/x - Step 3: Cross multiply
3,953,266.13x = 5,455,510.97 × 2,142,430.13 - Step 4: Simplify right side
3,953,266.13x = 11,688,051,038,683.82 - Step 5: Solve for x
x = 11,688,051,038,683.82/3,953,266.13 - Step 6: Final answer
x = 2,956,555.58
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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.