Finding the Fourth Proportional to 1,029,408,931.20, 1,544,337,345.60 and 339,198,729.60
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Solution
The fourth proportional to 1,029,408,931.20, 1,544,337,345.60 and 339,198,729.60 is: 508,871,887.38
Step by Step Solution
- Step 1: Write the proportion equation
1,029,408,931.20 : 1,544,337,345.60 = 339,198,729.60 : x - Step 2: Convert to fraction form
1,029,408,931.20/1,544,337,345.60 = 339,198,729.60/x - Step 3: Cross multiply
1,029,408,931.20x = 1,544,337,345.60 × 339,198,729.60 - Step 4: Simplify right side
1,029,408,931.20x = 523,837,265,701,356,160 - Step 5: Solve for x
x = 523,837,265,701,356,160/1,029,408,931.20 - Step 6: Final answer
x = 508,871,887.38
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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.