Finding the Fourth Proportional to 789,408,695,373.30, 1,089,390,395,936.20 and 437,447,506,343.94
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Solution
The fourth proportional to 789,408,695,373.30, 1,089,390,395,936.20 and 437,447,506,343.94 is: 603,681,103,249.03
Step by Step Solution
- Step 1: Write the proportion equation
789,408,695,373.30 : 1,089,390,395,936.20 = 437,447,506,343.94 : x - Step 2: Convert to fraction form
789,408,695,373.30/1,089,390,395,936.20 = 437,447,506,343.94/x - Step 3: Cross multiply
789,408,695,373.30x = 1,089,390,395,936.20 × 437,447,506,343.94 - Step 4: Simplify right side
789,408,695,373.30x = 476,551,112,137,328,147,038,208 - Step 5: Solve for x
x = 476,551,112,137,328,147,038,208/789,408,695,373.30 - Step 6: Final answer
x = 603,681,103,249.03
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Double scale
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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.