Finding the Fourth Proportional to 1,138,612,946.44, 1,708,133,220.60 and 516,871,816.84
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Solution
The fourth proportional to 1,138,612,946.44, 1,708,133,220.60 and 516,871,816.84 is: 775,404,779.91
Step by Step Solution
- Step 1: Write the proportion equation
1,138,612,946.44 : 1,708,133,220.60 = 516,871,816.84 : x - Step 2: Convert to fraction form
1,138,612,946.44/1,708,133,220.60 = 516,871,816.84/x - Step 3: Cross multiply
1,138,612,946.44x = 1,708,133,220.60 × 516,871,816.84 - Step 4: Simplify right side
1,138,612,946.44x = 882,885,921,136,282,368 - Step 5: Solve for x
x = 882,885,921,136,282,368/1,138,612,946.44 - Step 6: Final answer
x = 775,404,779.91
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.