Finding the Fourth Proportional to 2,130,437.18, 2,939,998.61 and 1,163,567.51
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Solution
The fourth proportional to 2,130,437.18, 2,939,998.61 and 1,163,567.51 is: 1,605,720.59
Step by Step Solution
- Step 1: Write the proportion equation
2,130,437.18 : 2,939,998.61 = 1,163,567.51 : x - Step 2: Convert to fraction form
2,130,437.18/2,939,998.61 = 1,163,567.51/x - Step 3: Cross multiply
2,130,437.18x = 2,939,998.61 × 1,163,567.51 - Step 4: Simplify right side
2,130,437.18x = 3,420,886,841,523.33 - Step 5: Solve for x
x = 3,420,886,841,523.33/2,130,437.18 - Step 6: Final answer
x = 1,605,720.59
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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.