Finding the Fourth Proportional to 77,359,246.53, 106,908,867.87 and 63,398,586.70
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Solution
The fourth proportional to 77,359,246.53, 106,908,867.87 and 63,398,586.70 is: 87,615,526.69
Step by Step Solution
- Step 1: Write the proportion equation
77,359,246.53 : 106,908,867.87 = 63,398,586.70 : x - Step 2: Convert to fraction form
77,359,246.53/106,908,867.87 = 63,398,586.70/x - Step 3: Cross multiply
77,359,246.53x = 106,908,867.87 × 63,398,586.70 - Step 4: Simplify right side
77,359,246.53x = 6,777,871,128,551,144 - Step 5: Solve for x
x = 6,777,871,128,551,144/77,359,246.53 - Step 6: Final answer
x = 87,615,526.69
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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.