Finding the Fourth Proportional to 103,593,625.98, 142,962,587.42 and 56,553,207.68
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Solution
The fourth proportional to 103,593,625.98, 142,962,587.42 and 56,553,207.68 is: 78,045,273.73
Step by Step Solution
- Step 1: Write the proportion equation
103,593,625.98 : 142,962,587.42 = 56,553,207.68 : x - Step 2: Convert to fraction form
103,593,625.98/142,962,587.42 = 56,553,207.68/x - Step 3: Cross multiply
103,593,625.98x = 142,962,587.42 × 56,553,207.68 - Step 4: Simplify right side
103,593,625.98x = 8,084,992,895,835,836 - Step 5: Solve for x
x = 8,084,992,895,835,836/103,593,625.98 - Step 6: Final answer
x = 78,045,273.73
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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.