Finding the Fourth Proportional to 135,432,829.95, 186,908,831.69 and 76,705,942.24
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Solution
The fourth proportional to 135,432,829.95, 186,908,831.69 and 76,705,942.24 is: 105,860,728.55
Step by Step Solution
- Step 1: Write the proportion equation
135,432,829.95 : 186,908,831.69 = 76,705,942.24 : x - Step 2: Convert to fraction form
135,432,829.95/186,908,831.69 = 76,705,942.24/x - Step 3: Cross multiply
135,432,829.95x = 186,908,831.69 × 76,705,942.24 - Step 4: Simplify right side
135,432,829.95x = 14,337,018,048,040,980 - Step 5: Solve for x
x = 14,337,018,048,040,980/135,432,829.95 - Step 6: Final answer
x = 105,860,728.55
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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.