Finding the Fourth Proportional to 946,637,421.08, 1,306,410,104.22 and 528,959,845.40
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Solution
The fourth proportional to 946,637,421.08, 1,306,410,104.22 and 528,959,845.40 is: 729,992,784.32
Step by Step Solution
- Step 1: Write the proportion equation
946,637,421.08 : 1,306,410,104.22 = 528,959,845.40 : x - Step 2: Convert to fraction form
946,637,421.08/1,306,410,104.22 = 528,959,845.40/x - Step 3: Cross multiply
946,637,421.08x = 1,306,410,104.22 × 528,959,845.40 - Step 4: Simplify right side
946,637,421.08x = 691,038,486,757,209,088 - Step 5: Solve for x
x = 691,038,486,757,209,088/946,637,421.08 - Step 6: Final answer
x = 729,992,784.32
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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.