Finding the Fourth Proportional to 143,179,564.96, 197,582,237.57 and 87,518,181.49
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Solution
The fourth proportional to 143,179,564.96, 197,582,237.57 and 87,518,181.49 is: 120,771,690.64
Step by Step Solution
- Step 1: Write the proportion equation
143,179,564.96 : 197,582,237.57 = 87,518,181.49 : x - Step 2: Convert to fraction form
143,179,564.96/197,582,237.57 = 87,518,181.49/x - Step 3: Cross multiply
143,179,564.96x = 197,582,237.57 × 87,518,181.49 - Step 4: Simplify right side
143,179,564.96x = 17,292,038,125,426,054 - Step 5: Solve for x
x = 17,292,038,125,426,054/143,179,564.96 - Step 6: Final answer
x = 120,771,690.64
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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.