Finding the Fourth Proportional to 102,879,053.46, 142,090,924.10 and 67,753,876.09
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Solution
The fourth proportional to 102,879,053.46, 142,090,924.10 and 67,753,876.09 is: 93,577,949.46
Step by Step Solution
- Step 1: Write the proportion equation
102,879,053.46 : 142,090,924.10 = 67,753,876.09 : x - Step 2: Convert to fraction form
102,879,053.46/142,090,924.10 = 67,753,876.09/x - Step 3: Cross multiply
102,879,053.46x = 142,090,924.10 × 67,753,876.09 - Step 4: Simplify right side
102,879,053.46x = 9,627,210,864,984,994 - Step 5: Solve for x
x = 9,627,210,864,984,994/102,879,053.46 - Step 6: Final answer
x = 93,577,949.46
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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.