Finding the Fourth Proportional to 99,008,990.20, 136,630,289.46 and 54,953,420.68
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Solution
The fourth proportional to 99,008,990.20, 136,630,289.46 and 54,953,420.68 is: 75,834,545.52
Step by Step Solution
- Step 1: Write the proportion equation
99,008,990.20 : 136,630,289.46 = 54,953,420.68 : x - Step 2: Convert to fraction form
99,008,990.20/136,630,289.46 = 54,953,420.68/x - Step 3: Cross multiply
99,008,990.20x = 136,630,289.46 × 54,953,420.68 - Step 4: Simplify right side
99,008,990.20x = 7,508,301,774,325,550 - Step 5: Solve for x
x = 7,508,301,774,325,550/99,008,990.20 - Step 6: Final answer
x = 75,834,545.52
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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.