Finding the Fourth Proportional to 28,501,695.09, 39,332,423.41 and 15,449,005.91
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Solution
The fourth proportional to 28,501,695.09, 39,332,423.41 and 15,449,005.91 is: 21,319,673.79
Step by Step Solution
- Step 1: Write the proportion equation
28,501,695.09 : 39,332,423.41 = 15,449,005.91 : x - Step 2: Convert to fraction form
28,501,695.09/39,332,423.41 = 15,449,005.91/x - Step 3: Cross multiply
28,501,695.09x = 39,332,423.41 × 15,449,005.91 - Step 4: Simplify right side
28,501,695.09x = 607,646,841,715,712.25 - Step 5: Solve for x
x = 607,646,841,715,712.25/28,501,695.09 - Step 6: Final answer
x = 21,319,673.79
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.