Finding the Fourth Proportional to 1,191,745,405.44, 1,787,875,408.80 and 362,763,871.92
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Solution
The fourth proportional to 1,191,745,405.44, 1,787,875,408.80 and 362,763,871.92 is: 544,224,129.45
Step by Step Solution
- Step 1: Write the proportion equation
1,191,745,405.44 : 1,787,875,408.80 = 362,763,871.92 : x - Step 2: Convert to fraction form
1,191,745,405.44/1,787,875,408.80 = 362,763,871.92/x - Step 3: Cross multiply
1,191,745,405.44x = 1,787,875,408.80 × 362,763,871.92 - Step 4: Simplify right side
1,191,745,405.44x = 648,576,605,806,840,832 - Step 5: Solve for x
x = 648,576,605,806,840,832/1,191,745,405.44 - Step 6: Final answer
x = 544,224,129.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.