Finding the Fourth Proportional to 135,800,970.28, 187,409,865.70 and 76,272,756.76
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Solution
The fourth proportional to 135,800,970.28, 187,409,865.70 and 76,272,756.76 is: 105,258,946.76
Step by Step Solution
- Step 1: Write the proportion equation
135,800,970.28 : 187,409,865.70 = 76,272,756.76 : x - Step 2: Convert to fraction form
135,800,970.28/187,409,865.70 = 76,272,756.76/x - Step 3: Cross multiply
135,800,970.28x = 187,409,865.70 × 76,272,756.76 - Step 4: Simplify right side
135,800,970.28x = 14,294,267,100,960,368 - Step 5: Solve for x
x = 14,294,267,100,960,368/135,800,970.28 - Step 6: Final answer
x = 105,258,946.76
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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.