Finding the Fourth Proportional to 72,692,214.84, 100,315,897.14 and 39,652,610.76
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Solution
The fourth proportional to 72,692,214.84, 100,315,897.14 and 39,652,610.76 is: 54,720,952.32
Step by Step Solution
- Step 1: Write the proportion equation
72,692,214.84 : 100,315,897.14 = 39,652,610.76 : x - Step 2: Convert to fraction form
72,692,214.84/100,315,897.14 = 39,652,610.76/x - Step 3: Cross multiply
72,692,214.84x = 100,315,897.14 × 39,652,610.76 - Step 4: Simplify right side
72,692,214.84x = 3,977,787,222,332,617 - Step 5: Solve for x
x = 3,977,787,222,332,617/72,692,214.84 - Step 6: Final answer
x = 54,720,952.32
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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.