Finding the Fourth Proportional to 42,209,378.47, 58,202,686.89 and 27,497,762.99
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Solution
The fourth proportional to 42,209,378.47, 58,202,686.89 and 27,497,762.99 is: 37,916,779.34
Step by Step Solution
- Step 1: Write the proportion equation
42,209,378.47 : 58,202,686.89 = 27,497,762.99 : x - Step 2: Convert to fraction form
42,209,378.47/58,202,686.89 = 27,497,762.99/x - Step 3: Cross multiply
42,209,378.47x = 58,202,686.89 × 27,497,762.99 - Step 4: Simplify right side
42,209,378.47x = 1,600,443,689,409,646.75 - Step 5: Solve for x
x = 1,600,443,689,409,646.75/42,209,378.47 - Step 6: Final answer
x = 37,916,779.34
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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.