Finding the Fourth Proportional to 28,658,822.13, 39,548,130.39 and 15,605,794.71
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Solution
The fourth proportional to 28,658,822.13, 39,548,130.39 and 15,605,794.71 is: 21,535,428.12
Step by Step Solution
- Step 1: Write the proportion equation
28,658,822.13 : 39,548,130.39 = 15,605,794.71 : x - Step 2: Convert to fraction form
28,658,822.13/39,548,130.39 = 15,605,794.71/x - Step 3: Cross multiply
28,658,822.13x = 39,548,130.39 × 15,605,794.71 - Step 4: Simplify right side
28,658,822.13x = 617,180,004,030,652.25 - Step 5: Solve for x
x = 617,180,004,030,652.25/28,658,822.13 - Step 6: Final answer
x = 21,535,428.12
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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.