Finding the Fourth Proportional to 28,402,501.84, 39,177,277.22 and 19,697,498.26
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Solution
The fourth proportional to 28,402,501.84, 39,177,277.22 and 19,697,498.26 is: 27,169,942.78
Step by Step Solution
- Step 1: Write the proportion equation
28,402,501.84 : 39,177,277.22 = 19,697,498.26 : x - Step 2: Convert to fraction form
28,402,501.84/39,177,277.22 = 19,697,498.26/x - Step 3: Cross multiply
28,402,501.84x = 39,177,277.22 × 19,697,498.26 - Step 4: Simplify right side
28,402,501.84x = 771,694,349,872,487.62 - Step 5: Solve for x
x = 771,694,349,872,487.62/28,402,501.84 - Step 6: Final answer
x = 27,169,942.78
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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.