Finding the Fourth Proportional to 86,287,889.19, 128,959,029.50 and 62,993,686.24
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Solution
The fourth proportional to 86,287,889.19, 128,959,029.50 and 62,993,686.24 is: 94,145,362.90
Step by Step Solution
- Step 1: Write the proportion equation
86,287,889.19 : 128,959,029.50 = 62,993,686.24 : x - Step 2: Convert to fraction form
86,287,889.19/128,959,029.50 = 62,993,686.24/x - Step 3: Cross multiply
86,287,889.19x = 128,959,029.50 × 62,993,686.24 - Step 4: Simplify right side
86,287,889.19x = 8,123,604,641,972,990 - Step 5: Solve for x
x = 8,123,604,641,972,990/86,287,889.19 - Step 6: Final answer
x = 94,145,362.90
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.