Finding the Fourth Proportional to 102,153,411.70, 140,974,698.99 and 55,746,656.80
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Solution
The fourth proportional to 102,153,411.70, 140,974,698.99 and 55,746,656.80 is: 76,932,018.53
Step by Step Solution
- Step 1: Write the proportion equation
102,153,411.70 : 140,974,698.99 = 55,746,656.80 : x - Step 2: Convert to fraction form
102,153,411.70/140,974,698.99 = 55,746,656.80/x - Step 3: Cross multiply
102,153,411.70x = 140,974,698.99 × 55,746,656.80 - Step 4: Simplify right side
102,153,411.70x = 7,858,868,162,078,837 - Step 5: Solve for x
x = 7,858,868,162,078,837/102,153,411.70 - Step 6: Final answer
x = 76,932,018.53
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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.